Overal 125 Bets - 26 winners return 127.90 Unitab

2011 - 20bet, 4 winners, return 29.20
2010 - 42bet, 9 winners, return 33.3
2009 - 29bet, 6 winners, return 23.7
2008 - 34bet, 7 winners, return 41.7

Is this a lesson being taught to the novice punter using backfiltering?