diff --git a/Common/config/default.json b/Common/config/default.json
index ef8cac8f..ffed7af6 100644
--- a/Common/config/default.json
+++ b/Common/config/default.json
@@ -188,7 +188,8 @@
 				"sessionclosecommand": "2m",
 				"pemStdTTL": "1h",
 				"pemCheckPeriod": "10m",
-				"updateVersionStatus": "5m"
+				"updateVersionStatus": "5m",
+				"monthUniqueUsers": "1y"
 			},
 			"ipfilter": {
 				"rules": [{"address": "*", "allowed": true}],
diff --git a/Common/sources/constants.js b/Common/sources/constants.js
index e5f07b4d..aac4b8ef 100644
--- a/Common/sources/constants.js
+++ b/Common/sources/constants.js
@@ -228,6 +228,7 @@ exports.REDIS_KEY_PRESENCE_HASH = 'presence:hash:';
 exports.REDIS_KEY_PRESENCE_SET = 'presence:set:';
 exports.REDIS_KEY_PRESENCE_UNIQUE_USERS = 'presence:unique:users';
 exports.REDIS_KEY_PRESENCE_UNIQUE_USERS_HASH = 'presence:unique:users:hash';
+exports.REDIS_KEY_PRESENCE_MONTH_UNIQUE_USERS_HASH = 'presence:unique:users:month';
 exports.REDIS_KEY_LOCKS = 'locks:';
 exports.REDIS_KEY_LOCK_DOCUMENT = 'lockdocument:';
 exports.REDIS_KEY_MESSAGE = 'message:';
diff --git a/Common/sources/license.js b/Common/sources/license.js
index c651c605..3f84ab75 100644
--- a/Common/sources/license.js
+++ b/Common/sources/license.js
@@ -39,6 +39,8 @@ const oBuildDate = new Date(buildDate);
 
 exports.readLicense = function*() {
 	const c_LR = constants.LICENSE_RESULT;
+	var now = new Date();
+	var startDate = new Date(Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), 1));//first day of current month
 	return [{
 		count: 1,
 		type: c_LR.Success,
@@ -53,6 +55,7 @@ exports.readLicense = function*() {
 		hasLicense: false,
 		plugins: false,
 		buildDate: oBuildDate,
+		startDate: startDate,
 		endDate: null
 	}, null];
 };
diff --git a/Common/sources/utils.js b/Common/sources/utils.js
index 182dc67d..b9da6a2d 100644
--- a/Common/sources/utils.js
+++ b/Common/sources/utils.js
@@ -930,6 +930,7 @@ exports.convertLicenseInfoToFileParams = function(licenseInfo) {
   // 	whiteLabel = false;
   // }
   let license = {};
+  license.start_date = licenseInfo.startDate && licenseInfo.startDate.toJSON();
   license.end_date = licenseInfo.endDate && licenseInfo.endDate.toJSON();
   license.timelimited = 0 !== (constants.LICENSE_MODE.Limited & licenseInfo.mode);
   license.trial = 0 !== (constants.LICENSE_MODE.Trial & licenseInfo.mode);
@@ -966,3 +967,43 @@ exports.checkBaseUrl = function(baseUrl) {
 exports.resolvePath = function(object, path, defaultValue) {
   return path.split('.').reduce((o, p) => o ? o[p] : defaultValue, object);
 }
+
+Date.isLeapYear = function (year) {
+  return (((year % 4 === 0) && (year % 100 !== 0)) || (year % 400 === 0));
+};
+
+Date.getDaysInMonth = function (year, month) {
+  return [31, (Date.isLeapYear(year) ? 29 : 28), 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month];
+};
+
+Date.prototype.isLeapYear = function () {
+  return Date.isLeapYear(this.getUTCFullYear());
+};
+
+Date.prototype.getDaysInMonth = function () {
+  return Date.getDaysInMonth(this.getUTCFullYear(), this.getUTCMonth());
+};
+
+Date.prototype.addMonths = function (value) {
+  var n = this.getUTCDate();
+  this.setUTCDate(1);
+  this.setUTCMonth(this.getUTCMonth() + value);
+  this.setUTCDate(Math.min(n, this.getDaysInMonth()));
+  return this;
+};
+function getMonthDiff(d1, d2) {
+  var months;
+  months = (d2.getUTCFullYear() - d1.getUTCFullYear()) * 12;
+  months -= d1.getUTCMonth();
+  months += d2.getUTCMonth();
+  return months;
+}
+
+exports.getLicensePeriod = function(startDate, now) {
+  startDate = new Date(startDate.getTime());//clone
+  startDate.addMonths(getMonthDiff(startDate, now));
+  if (startDate > now) {
+    startDate.addMonths(-1);
+  }
+  return startDate.getTime();
+};
diff --git a/DocService/sources/DocsCoServer.js b/DocService/sources/DocsCoServer.js
index d243ac97..b7118a85 100644
--- a/DocService/sources/DocsCoServer.js
+++ b/DocService/sources/DocsCoServer.js
@@ -556,6 +556,8 @@ function* updateEditUsers(userId, anonym) {
   const expireAt = (Date.UTC(now.getUTCFullYear(), now.getUTCMonth(), now.getUTCDate() + 1)) / 1000 +
       licenseInfo.usersExpire - 1;
   yield editorData.addPresenceUniqueUser(userId, expireAt, {anonym: anonym});
+  let period = utils.getLicensePeriod(licenseInfo.startDate, now);
+  yield editorData.addPresenceUniqueUsersOfMonth(userId, period, {anonym: anonym, firstOpenDate: now.toISOString()});
 }
 function* getEditorsCount(docId, opt_hvals) {
   var elem, editorsCount = 0;
@@ -3313,7 +3315,7 @@ exports.licenseInfo = function(req, res) {
   return co(function*() {
     let isError = false;
     let output = {
-		connectionsStat: {}, licenseInfo: {}, serverInfo: {
+		connectionsStat: {}, uniqueUsersOfMonth: {}, licenseInfo: {}, serverInfo: {
 			buildVersion: commonDefines.buildVersion, buildNumber: commonDefines.buildNumber,
 		}, quota: {
         uniqueUserCount: 0,
@@ -3323,10 +3325,12 @@ exports.licenseInfo = function(req, res) {
     Object.assign(output.licenseInfo, licenseInfo);
     try {
       logger.debug('licenseInfo start');
+      logger.debug(`licenseInfo req.query:%j`, req.query);
+      let monthOffset = parseInt(req.query['monthoffset']) || 0;
       var precisionSum = {};
       for (let i = 0; i < PRECISION.length; ++i) {
         precisionSum[PRECISION[i].name] = {
-          edit: {min: Number.MAX_VALUE, sum: 0, count: 0, max: 0, time: null, period: PRECISION[i].val},
+          edit: {min: Number.MAX_VALUE, sum: 0, count: 0, max: 0},
           view: {min: Number.MAX_VALUE, sum: 0, count: 0, max: 0}
         };
         output.connectionsStat[PRECISION[i].name] = {
@@ -3346,7 +3350,6 @@ exports.licenseInfo = function(req, res) {
             precision.edit.max = Math.max(precision.edit.max, elem.edit);
             precision.edit.sum += elem.edit;
             precision.edit.count++;
-			precision.edit.time = elem.time;
             precision.view.min = Math.min(precision.view.min, elem.view);
             precision.view.max = Math.max(precision.view.max, elem.view);
             precision.view.sum += elem.view;
@@ -3359,15 +3362,13 @@ exports.licenseInfo = function(req, res) {
       for (let i in precisionSum) {
         let precision = precisionSum[i];
         let precisionOut = output.connectionsStat[i];
-		//scale compensates for the lack of points at server start
-		let scale = (now - precision.edit.time) / precision.edit.period;
         if (precision.edit.count > 0) {
-          precisionOut.edit.avr = Math.round((precision.edit.sum / precision.edit.count) * scale);
+          precisionOut.edit.avr = Math.round(precision.edit.sum / precision.edit.count);
           precisionOut.edit.min = precision.edit.min;
           precisionOut.edit.max = precision.edit.max;
         }
         if (precision.view.count > 0) {
-          precisionOut.view.avr = Math.round((precision.view.sum / precision.view.count) * scale);
+          precisionOut.view.avr = Math.round(precision.view.sum / precision.view.count);
           precisionOut.view.min = precision.view.min;
           precisionOut.view.max = precision.view.max;
         }
@@ -3380,6 +3381,10 @@ exports.licenseInfo = function(req, res) {
           output.quota.anonymousUserCount++;
         }
       });
+      let nowClone = new Date(now);//clone
+      nowClone.addMonths(monthOffset);
+      let period = utils.getLicensePeriod(licenseInfo.startDate, nowClone);
+      output.uniqueUsersOfMonth = yield editorData.getPresenceUniqueUsersOfMonth(period);
       logger.debug('licenseInfo end');
     } catch (err) {
       isError = true;
diff --git a/DocService/sources/editorDataMemory.js b/DocService/sources/editorDataMemory.js
index 611f28bb..2d306322 100644
--- a/DocService/sources/editorDataMemory.js
+++ b/DocService/sources/editorDataMemory.js
@@ -31,13 +31,18 @@
  */
 
 'use strict';
+const config = require('config');
+const ms = require('ms');
 const utils = require('./../../Common/sources/utils');
 const commonDefines = require('./../../Common/sources/commondefines');
 
+const cfgExpMonthUniqueUsers = ms(config.get('services.CoAuthoring.expire.monthUniqueUsers'));
+
 function EditorData() {
   this.data = {};
   this.forceSaveTimer = {};
   this.uniqueUser = {};
+  this.uniqueUsersOfMonth = {};
   this.shutdown = {};
   this.stat = [];
 }
@@ -242,6 +247,26 @@ EditorData.prototype.getPresenceUniqueUser = function(nowUTC) {
   }
   return Promise.resolve(res);
 };
+EditorData.prototype.addPresenceUniqueUsersOfMonth = function(userId, period, userInfo) {
+  if(!this.uniqueUsersOfMonth[period]) {
+    let expireAt = Date.now() + cfgExpMonthUniqueUsers;
+    this.uniqueUsersOfMonth[period] = {expireAt: expireAt, data: {}};
+  }
+  this.uniqueUsersOfMonth[period].data[userId] = userInfo;
+  return Promise.resolve();
+};
+EditorData.prototype.getPresenceUniqueUsersOfMonth = function(period) {
+  let nowUTC = Date.now();
+  for (let periodId in this.uniqueUsersOfMonth) {
+    if (this.uniqueUsersOfMonth.hasOwnProperty(periodId)) {
+      if (this.uniqueUsersOfMonth[periodId].expireAt <= nowUTC) {
+        delete this.uniqueUsersOfMonth[periodId];
+      }
+    }
+  }
+  let res = this.uniqueUsersOfMonth[period];
+  return Promise.resolve(res && res.data || {});
+};
 
 EditorData.prototype.setEditorConnections = function(countEdit, countView, now, precision) {
   this.stat.push({time: now, edit: countEdit, view: countView});
diff --git a/DocService/sources/server.js b/DocService/sources/server.js
index a5f77a68..2453e328 100644
--- a/DocService/sources/server.js
+++ b/DocService/sources/server.js
@@ -204,7 +204,7 @@ docsCoServer.install(server, () => {
 	app.post('/docbuilder', utils.checkClientIp, rawFileParser, (req, res) => {
 		converterService.builder(req, res);
 	});
-	app.get('/info/info.json', utils.checkClientIp, docsCoServer.licenseInfo);
+	app.get('/info/info.json', utils.checkClientIp, utils.lowercaseQueryString, docsCoServer.licenseInfo);
 	app.put('/internal/cluster/inactive', utils.checkClientIp, docsCoServer.shutdown);
 	app.delete('/internal/cluster/inactive', utils.checkClientIp, docsCoServer.shutdown);