How many golfers are there in Asia Pacific? Worldwide - with geographical breakdown?

I am really looking for market statistics on the number of golfers in the Asia / Pacific region. Any additional detail on what the source is considering a "golfer" would be very helpful (i.e. people over 5 yrs old that have played at least 1 round in last 12 months).

Thanks in advance!

Worldwide, are an estimated 50 to 61 million golfers. In the United

States, there are an estimated 26 to 37 million golfers.

According to Sports Marketing Surveys, there are 61.1 million golfers

worldwide; 6.9 million in Europe, 13.6 million in Asia, 1.7 million in

Australasia, 1 million in South America and 500 000 in South Africa.

There are 37.1 million in the US alone.

source: Business Report, 9/28/2003