Investors turning to forex markets

[wsreader]

".....Singapore, the world's largest forex trading market, accounts for 5 per cent of the global turnover....."

The Bank of International Settlements publish the report every 3 years, the latest in 2010. According to the 2010 report at http://www.bis.org/publ/rpfx10.pdf, the ranking of the global foreign exchange market turnover by geographical distribution was as follows :
United Kingdom (37%), United States (18%), Japan (6%), Singapore (5%), Switzerland (5%), Hong Kong SAR (5%) and Australia (4%)

I wonder how the reporter got her fact that Singapore is the world's largest forex trading market ?