Ten provinces with highest insured persens in social security article 39: 2003 - 2005   2003   Rank Provinces Number 1 Bangkok 49,632 2 Samut Prakan 17,331 3 Chiang Mai 10,298 4 Pathum Thani 7,156 5 Nonthaburi 6,638 6 Chon Buri 5,681 7 Songkhla 4,616 8 Samut Sakhon 4,575 9 Nakhon Ratchasima 3,542 10 Nakhon Pathom 3,369   Whole Kingdom 175,131   2004   Rank Provinces Number 1 Bangkok 56,976 2 Samut Prakan 19,104 3 Chiang Mai 11,963 4 Pathum Thani 8,204 5 Nonthaburi 7,722 6 Chon Buri 6,979 7 Songkhla 5,581 8 Samut Sakhon 4,910 9 Nakhon Ratchasima 4,265 10 Nakhon Pathom 3,951   Whole Kingdom 200,298   2005   Rank Provinces Number 1 Bangkok 69,104 2 Samut Prakan 21,942 3 Chiang Mai 14,422 4 Pathum Thani 10,183 5 Nonthaburi 9,222 6 Chon Buri 8,906 7 Songkhla 6,329 8 Samut Sakhon 5,715 9 Nakhon Ratchasima 5,425 10 Nakhon Pathom 4,919   Whole Kingdom 241,929 Source : Social Security Office, Ministry of Labour Compiled by : Statistical Forecasting Bureau,  National Statistical Office