Ten provinces with least vehicle registration: 2009 - 2011   2009     Rank Provinces Number % 1 Mae Hong Son 39,219 0.15 2 Samut Songkhram 54,072 0.21 3 Ranong 58,987 0.22 4 Amnat Charoen 86,498 0.33 5 Nakhon Nayok 96,289 0.37 6 Mukdahan 97,095 0.37 7 Trat 99,048 0.38 8 Nong Bua Lam Phu 102,325 0.39 9 Pangnga 102,926 0.39 10 Samut Prakan 103,163 0.39   Whole Kingdom 26,258,235 100   2010     Rank Provinces Number % 1 Mae Hong Son 41,792 0.15 2 Samut Songkhram 55,095 0.20 3 Ranong 62,073 0.23 4 Amnat Charoen 91,131 0.33 5 Nakhon Nayok 99,121 0.36 6 Trat 104,420 0.38 7 Mukdahan 104,851 0.38 8 Pangnga 105,099 0.38 9 Pathum Thani 106,631 0.39 10 Samut Prakan 106,975 0.39   Whole Kingdom 27,530,042 100   2011     Rank Provinces Number % 1 Bueng Kan 10,899 0.04 2 Mae Hong Son 44,757 0.15 3 Samut Songkhram 56,553 0.19 4 Ranong 67,242 0.23 5 Amnat Charoen 97,733 0.33 6 Nakhon Nayok 102,306 0.35 7 Pathum Thani 107,034 0.37 8 Pangnga 110,133 0.38 9 Samut Prakan 110,345 0.38 10 Trat 111,408 0.38   Whole Kingdom 29,204,511 100 Souce : Department of Land Transport, Ministry of Transport Compiled by : Statistical Forecasting Bureau,  National Statistical Office