Ten provinces with highest number of utiligation in case of sickness: 2003 - 2005
  2003  
Rank Provinces Number
1 Bangkok 6,106,413
2 Samut Prakan 2,375,636
3 Samut Sakhon 1,650,923
4 Chon Buri 1,282,597
5 Pathum Thani 852,986
6 Chiang Mai 644,359
7 Songkhla 612,534
8 Nakhon Ratchasima 592,500
9 Nonthaburi 554,220
10 Phra Nakhon Si Ayutthaya 465,216
  Whole Kingdom 21,331,082
  2004  
Rank Provinces Number
1 Bangkok 6,253,626
2 Samut Prakan 2,484,624
3 Samut Sakhon 1,866,177
4 Chon Buri 1,364,881
5 Pathum Thani 940,163
6 Chiang Mai 738,878
7 Nonthaburi 611,688
8 Phra Nakhon Si Ayutthaya 607,381
9 Nakhon Ratchasima 604,626
10 Songkhla 579,039
  Whole Kingdom 22,793,471
  2005  
Rank Provinces Number
1 Bangkok 6,060,230
2 Samut Prakan 2,373,931
3 Samut Sakhon 1,898,593
4 Chon Buri 1,336,812
5 Pathum Thani 997,687
6 Chiang Mai 707,694
7 Nonthaburi 607,914
8 Phra Nakhon Si Ayutthaya 603,731
9 Nakhon Ratchasima 597,863
10 Songkhla 579,817
  Whole Kingdom 22,164,334
Source : Social Security Office, Ministry of Labour
Compiled by : Statistical Forecasting Bureau,  National Statistical Office