diff --git a/site/controllers/api.json.php b/site/controllers/api.json.php
index 8a55546..774c01f 100644
--- a/site/controllers/api.json.php
+++ b/site/controllers/api.json.php
@@ -1251,6 +1251,13 @@ public function totals()
             //handle unexpected warnings from model
             set_error_handler(array($this, 'exception_error_handler'));
 			$result = ImcFrontendHelper::getTotals();
+
+			// Calculate the difference between start and end date (in years, months & days).
+			$diff = date_diff(date_create($result[0]['newest_issue_date']), date_create($result[0]['oldest_issue_date']));
+            $result[0]['years'] = $diff->y;
+            $result[0]['months'] = $diff->m;
+            $result[0]['days'] = $diff->d;
+
 			restore_error_handler();
 
     	    $app->enqueueMessage('size: '.sizeof($result), 'info');
diff --git a/site/helpers/imc.php b/site/helpers/imc.php
index 9eeedcc..67f2b6d 100644
--- a/site/helpers/imc.php
+++ b/site/helpers/imc.php
@@ -1025,6 +1025,8 @@ public static function getTotals($limit = null, $ts = null, $prior_to = null)
 		  (SELECT COUNT(*) FROM #__imc_votes WHERE state=1) as total_votes,
 		  (SELECT COUNT(*) FROM #__imc_comments WHERE state=1) as total_comments,
 		  (SELECT COUNT(*) FROM #__users WHERE 1) as total_users,
+		  (SELECT UNIX_TIMESTAMP(created) FROM #__imc_issues WHERE state=1 ORDER BY created ASC LIMIT 1) as oldest_issue_date_ts,
+		  (SELECT UNIX_TIMESTAMP(created) FROM #__imc_issues WHERE state=1 ORDER BY created DESC LIMIT 1) as newest_issue_date_ts,
 		  (SELECT created FROM #__imc_issues WHERE state=1 ORDER BY created ASC LIMIT 1) as oldest_issue_date,
 		  (SELECT created FROM #__imc_issues WHERE state=1 ORDER BY created DESC LIMIT 1) as newest_issue_date
 		');
@@ -1264,7 +1266,7 @@ public static function intervals($by_step = false, $by_category = false, $ts = n
 					WHERE a.issueid IN (
 					  SELECT id
 					  FROM #__imc_issues AS p
-					  WHERE p.state = 1 AND p.stepid >= '. self::getPrimaryStepId() .
+					  WHERE p.state = 1 '.
 						(!is_null($ts) ? ' AND p.created >= "' . $ts .'"' : '').
 						(!is_null($prior_to) ? ' AND p.created <= "' . $prior_to .'"' : '').'
 					)