diff --git a/fhem/FHEM/98_statistics.pm b/fhem/FHEM/98_statistics.pm
index 2363077df..87fa05964 100644
--- a/fhem/FHEM/98_statistics.pm
+++ b/fhem/FHEM/98_statistics.pm
@@ -662,11 +662,11 @@ statistics_doStatisticDelta ($$$$$)
  # Store single readings
    my $singularReadings = AttrVal($name, "singularReadings", "");
    if ($singularReadings ne "") {
-      # statistics_storeSingularReadings $hashName,$singularReadings,$dev,$statReadingName,$readingName,$statType,$period,$statValue,$value,$saveLast
+      # statistics_storeSingularReadings $hashName,$singularReadings,$dev,$statReadingName,$readingName,$statType,$period,$statValue,$lastValue,$saveLast
       statistics_storeSingularReadings ($name,$singularReadings,$dev,$statReadingName,$readingName,"Delta","Hour",$stat[1],$last[1],$periodSwitch >= 1);
-      statistics_storeSingularReadings ($name,$singularReadings,$dev,$statReadingName,$readingName,"Delta","Day",$stat[1],$last[1],$periodSwitch >= 2);
-      statistics_storeSingularReadings ($name,$singularReadings,$dev,$statReadingName,$readingName,"Delta","Month",$stat[1],$last[1],$periodSwitch >= 3);
-      statistics_storeSingularReadings ($name,$singularReadings,$dev,$statReadingName,$readingName,"Delta","Year",$stat[1],$last[1],$periodSwitch >= 4);
+      statistics_storeSingularReadings ($name,$singularReadings,$dev,$statReadingName,$readingName,"Delta","Day",$stat[3],$last[3],$periodSwitch >= 2);
+      statistics_storeSingularReadings ($name,$singularReadings,$dev,$statReadingName,$readingName,"Delta","Month",$stat[5],$last[5],$periodSwitch >= 3);
+      statistics_storeSingularReadings ($name,$singularReadings,$dev,$statReadingName,$readingName,"Delta","Year",$stat[7],$last[7],$periodSwitch >= 4);
    }
    
   # Store hidden reading
@@ -780,7 +780,7 @@ statistics_doStatisticDurationSingle ($$$$$$)
 sub ####################
 statistics_storeSingularReadings ($$$$$$$$$$)
 {
-   my ($hashName,$singularReadings,$dev,$statReadingName,$readingName,$statType,$period,$statValue,$value,$saveLast) = @_;
+   my ($hashName,$singularReadings,$dev,$statReadingName,$readingName,$statType,$period,$statValue,$lastValue,$saveLast) = @_;
    return if $singularReadings eq "";
 
    if ($statType eq "Delta") { $statReadingName .= $period;}
@@ -790,8 +790,8 @@ statistics_storeSingularReadings ($$$$$$$$$$)
       readingsBulkUpdate($dev, $statReadingName, $statValue, 1);
       Log3 $hashName, 5, "Set ".$statReadingName." = $statValue";
       if ($saveLast) {
-         readingsBulkUpdate($dev, $statReadingName."Last", $value, 1);
-         Log3 $hashName, 5, "Set ".$statReadingName."Last = $value";
+         readingsBulkUpdate($dev, $statReadingName."Last", $lastValue, 1);
+         Log3 $hashName, 5, "Set ".$statReadingName."Last = $lastValue";
       } 
    }
 }