From the block reward source that ocminer posted this is the total (there may be more but the source posted only goes to block 8640)

Blocks          Reward      Coins
0 - 119          0               0
120 - 719      1000           599,000
720 - 1439     500            359,500
1440 - 2159   1500           1,078,500
2160 - 2879   500            359,500
2880 - 3599   10000         7,190,000
3600 - 4319   500            359,500
4320 - 5039   2000           1,438,000
5040 - 5759   500            359,500
5760 - 6479   2500           1,797,500
6480 - 7199   500            359,500
7200 - 7919   3000           2,157,000
7920 - 8639   500            359,500

So the total coins up to block 8639 is 16,417,000

Assuming that I have worked that out correctly!