As I wrote in another thread...
"Unless and until WGT can get a handle on the HUGE number of cheaters on this site, the numbers will mean nothing.
The biggest problem is the vast number of multiple accounts. Then the multiples with different country listings.... etc etc etc.
WGT may list over 2 million subscribers... (just a number I grabbed, I do not know the actual number)... maybe 25% are actual unique account holders, 25% 'dead' accounts, and 50% multiples.
The really sad part is the multiples are trying to win all the hack and amatuer tourneys. I say 'trying' because WGT does verify all scores, but I really don't expect them to catch all of the miscreants."
So, basically, I don't see a way that you can get an answer anywhere near the truth.