When are sportsbetting results significant?

[WichitaDM]

I totalled my bets from the last few years and got the following results

+400 and up 1-4
+200-399 5-10
+110-199 47-47
+109--119 219-208
-120-199 21-21
-200 and up 23-6

Obviously i am up somewhat over this time period. I was wondering if these results are significant or just results of blind luck. Thanks,

DM