One year run statistics, trying to figure out if my performance is getting better.. No big results unfortunately..;)

• Total run distance (km): 739.34
• Total runs count: 135
• Totale run time: 3 days 13:32:27
• Average heart-rate: 152.70
• Total burnt calories: 56922

This is a last try to catch some increase in performance (aka reduction of average heartbeat on average pace/distance), but not big results, it seems at least.