Often ethnicity identities in practice are flexible- sometimes as flexible as simply changing clothes- in part due to a lack of religious or caste stratification prior to British colonialism.
[2] The list has faced criticism for overcounting the number of ethnic groups.
[3] According to Gamanii, a researcher who scrutinized the claim, only 59 out of the 135 ethnic groups mentioned can be verified as existing entities.
[4] Many unrecognised ethnic groups exist, the largest being the Burmese Chinese and Panthay (who together form 3% of the population), Burmese Indians (who form 2% of the population), Rohingya, Anglo-Burmese and Gurkha.
There are no official statistics regarding the population of the latter two groups, although unofficial estimates place around 52,000 Anglo-Burmese in Burma with around 1.6 million outside the country.