Removed unplotted space from graphs

Change-Id: Ibea5c11500f2929ac14cf6916067f5460334dc96
diff --git a/cron/plot.gnu b/cron/plot.gnu
index 6753638..667a9c6 100644
--- a/cron/plot.gnu
+++ b/cron/plot.gnu
@@ -2,7 +2,7 @@
 set ylabel "Mitjana taxa de creixement darrers 7 dies"
 set title font "Helvetica,20"
 
-set xrange[0:600]
+set xrange[0:410]
 set yrange[0:5]
 set samples 400
 #unset colorbox