The supply is moderated by big cooperative pools that spread out the block generation workload in return for spreading out the rewards. http://deepbit.net/stat

The supply is moderated by big cooperative pools that spread out the block generation workload in return for spreading out the rewards. http://deepbit.net/stats.php http://deepbit.net/stats.php is a fairly large pool that wins pretty often, and a hobbyist crunching on spare GPUs will see a better return through a pool than trying to get lucky on their own.