Country	2014	2015	2016
United States	47.15	46.90	48.64
Mexico	27.34	27.14	27.93
India	22.92	23.13	20.51
Pakistan	18.15	23.44	22.43
Indonesia	17.67	18.20	18.25
China	17.14	17.27	17.69
Average	25.06	26.01	25.91