diff --git a/fio_splitter.sh b/fio_splitter.sh
index c2361df..df56ad7 100644
--- a/fio_splitter.sh
+++ b/fio_splitter.sh
@@ -194,8 +194,10 @@ split_year() {
 		    grep "^ID" "$CSVNAME"
 		else
 		    # Non-empty month
-		    echo "$idFrom"
-		    echo "$idTo"
+		    IDFROM=`grep "^[0-9]*;...$MONTH.$YEAR;" "$CSVNAME"|head -1|sed 's/;.*//'`
+		    IDTO=`grep "^[0-9]*;...$MONTH.$YEAR;" "$CSVNAME"|sort -gr -t';'|head -1|sed 's/;.*//'`
+		    echo "idFrom;$IDFROM"
+		    echo "idTo;$IDTO"
 		    echo
 		    grep "^ID" "$CSVNAME"
 		    grep "^[0-9]*;...$MONTH.$YEAR;" "$CSVNAME"