In its 1970 and 2000 censuses, Thailand collected nationality data by province whereas in its 1990 and 2000 census, Thailand collected both religion and language data by province. In both 1970 and 2000, almost every Thai province's population was 95.0% or more Thai nationals. Bangkok was the only exception to this rule in 1970, and just barely, whereas Chiang Rai, Tak, Ranong, and Mae Hong Son (but not Bangkok) were the only exceptions to this rule in 2000. In both 1970 and 2000, almost every Thai province's population was Buddhist-majority (indeed, many Thai provinces in both 1990 and 2000 even had Buddhist percentages of 99.0% or more), with the only exceptions being Narathiwat, Pattani, Satun, and Yala, all of which are both Muslim-majority and located in southern Thailand–specifically