diff --git a/views/bootstrap/class.Charts.php b/views/bootstrap/class.Charts.php
index 06eed4d2d..679e227e9 100644
--- a/views/bootstrap/class.Charts.php
+++ b/views/bootstrap/class.Charts.php
@@ -173,7 +173,7 @@ if(in_array($type, array('docspermonth'))) {
 <?php
 	if($data) {
 		foreach($data as $rec) {
-			echo '{ label: "'.htmlspecialchars($rec['key']).'", data: [[1,'.$rec['total'].']]},'."\n";
+			echo '{ label: "'.$this->getKeyValue($type, $rec).'", data: [[1,'.$rec['total'].']]},'."\n";
 		}
 	}
 ?>
@@ -245,7 +245,31 @@ $(document).ready( function() {
 		return true;
 	} /* }}} */
 
-	protected function getSearchUrl($type, $item) {
+	protected function getKeyValue($type, $item) { /* {{{ */
+		switch ($type) {
+		case 'docspersizerange':
+			return htmlspecialchars('< '.SeedDMS_Core_File::format_filesize(pow(10, $item['key']+1), ['Bytes', 'KB', 'MB', 'GB'], 10, 1000).', >= '.SeedDMS_Core_File::format_filesize(pow(10, $item['key']), ['Bytes', 'KB', 'MB', 'GB'], 10, 1000));
+			break;
+		case 'docsaccumulated':
+			return getReadableDate($item['key']/1000);
+			break;
+		default:
+			return htmlspecialchars($item['key']);
+		}
+	} /* }}} */
+
+	protected function getTotalValue($type, $total) { /* {{{ */
+		switch ($type) {
+		case 'sizeperuser':
+		case 'sizepermonth':
+			return htmlspecialchars(SeedDMS_Core_File::format_filesize($total));
+			break;
+		default:
+			return htmlspecialchars($total);
+		}
+	} /* }}} */
+
+	protected function getSearchUrl($type, $item) { /* {{{ */
 		$dms = $this->params['dms'];
 		$settings = $this->params['settings'];
 
@@ -270,6 +294,11 @@ $(document).ready( function() {
 			$endmonth = date('Y-m-t', strtotime($startmonth));
 			$searchurl = $settings->_httpRoot.'out/out.Search.php?fullsearch=0&query=&mode=1&orderby=&resultmode=1&created%5Bfrom%5D='.$startmonth.'&created%5Bto%5D='.$endmonth;
 			break;
+		case 'docspersizerange':
+			$filesizestart = pow(10, $item['key']);
+			$filesizeend = pow(10, $item['key']+1)-1;
+			$searchurl = $settings->_httpRoot.'out/out.Search.php?fullsearch=0&query=&mode=1&orderby=&resultmode=1&filesize%5Bfrom%5D='.$filesizestart.'&filesize%5Bto%5D='.$filesizeend;
+			break;
 		case 'docspermimetype':
 			$searchurl = $settings->_httpRoot.'out/out.Search.php?fullsearch=0&query=&mode=1&orderby=&resultmode=1&mimetype%5B%5D='.urlencode($item['key']);
 			break;
@@ -280,7 +309,7 @@ $(document).ready( function() {
 			break;
 		}
 		return $searchurl;
-	}
+	} /* }}} */
 
 	public function show() { /* {{{ */
 		$dms = $this->params['dms'];
@@ -306,7 +335,7 @@ $(document).ready( function() {
 		$this->columnStart(3);
 		$this->contentHeading(getMLText("chart_selection"));
 		$this->contentContainerStart();
-		foreach(array('docsperuser', 'foldersperuser', 'sizeperuser', 'sizepermonth','docspermimetype', 'docspercategory', 'docsperstatus', 'docspermonth', 'docsaccumulated') as $atype) {
+		foreach(array('docsperuser', 'foldersperuser', 'sizeperuser', 'sizepermonth','docspersizerange', 'docspermimetype', 'docspercategory', 'docsperstatus', 'docspermonth', 'docsaccumulated') as $atype) {
 			if($this->showChart($atype))
 				echo "<div><a href=\"?type=".$atype."\">".getMLText('chart_'.$atype.'_title')."</a></div>\n";
 		}
@@ -349,7 +378,7 @@ $(document).ready( function() {
 			$oldtotal = 0;
 			foreach($data as $item) {
 				echo "<tr>";
-				echo "<td data-sort=\"".str_replace('-', '', $item['key'])."\">".htmlspecialchars($item['key'])."</td>";
+				echo "<td data-sort=\"".str_replace('-', '', $item['key'])."\">".$this->getKeyValue($type, $item)."</td>";
 				echo "<td>".$item['total']."</td>";
 				if(in_array($type, array('docspermonth')))
 					echo "<td>".sprintf('%+d', $item['total']-$oldtotal)."</td>";
@@ -371,7 +400,7 @@ $(document).ready( function() {
 			$oldtotal = 0;
 			foreach($data as $item) {
 				echo "<tr>";
-				echo "<td data-sort=\"".$item['key']."\">".getReadableDate($item['key']/1000)."</td>";
+				echo "<td data-sort=\"".$item['key']."\">".$this->getKeyValue($type, $item)."</td>";
 				echo "<td>".$item['total']."</td>";
 				echo "<td>".sprintf('%+d', $item['total']-$oldtotal)."</td>";
 				$searchurl = $this->getSearchUrl($type, $item);
@@ -388,8 +417,8 @@ $(document).ready( function() {
 		case 'sizeperuser':
 			foreach($data as $item) {
 				$currUser = $dms->getUser($item['res']);
-				echo "<tr><td>".htmlspecialchars($item['key'])."</td>";
-				echo "<td data-sort=\"".$item['total']."\">".SeedDMS_Core_File::format_filesize((int) $item['total'])."</td>";
+				echo "<tr><td>".$this->getKeyValue($type, $item)."</td>";
+				echo "<td data-sort=\"".$item['total']."\">".$this->getTotalValue($type, (int) $item['total'])."</td>";
 				if($quota) {
 					echo "<td width=\"100\">";
 					$qt = $currUser->getQuota() ? $currUser->getQuota() : $quota;
@@ -406,13 +435,14 @@ $(document).ready( function() {
 			}
 			echo "</tbody>";
 			echo "<tfoot>";
-			echo "<tr><th></th><th>".SeedDMS_Core_File::format_filesize($total)."<th></tr>";
+			echo "<tr><th></th><th>".$this->getTotalValue($type, $total)."<th></tr>";
 			echo "<tfoot>";
 			break;
+		case 'docspersizerange':
 		case 'sizepermonth':
 			foreach($data as $item) {
-				echo "<tr><td>".htmlspecialchars($item['key'])."</td>";
-				echo "<td data-sort=\"".$item['total']."\">".SeedDMS_Core_File::format_filesize((int) $item['total'])."</td>";
+				echo "<tr><td>".$this->getKeyValue($type, $item)."</td>";
+				echo "<td data-sort=\"".$item['total']."\">".$this->getTotalValue($type, (int) $item['total'])."</td>";
 				$searchurl = $this->getSearchUrl($type, $item);
 				if($searchurl)
 					echo "<td><a href=\"".$searchurl."\"><i class=\"fa fa-search\"></i></a></td>";
@@ -423,7 +453,7 @@ $(document).ready( function() {
 			}
 			echo "</tbody>";
 			echo "<tfoot>";
-			echo "<tr><th></th><th>".SeedDMS_Core_File::format_filesize($total)."<th></tr>";
+			echo "<tr><th></th><th>".$this->getTotalValue($type, $total)."<th></tr>";
 			echo "</tfoot>";
 			break;
 		}