2007	2008	2009	2010	2011	Avg.	2012	2013	2014	2015	2016	Avg.
China	14.63	15.18	14.42	15.67	16.28	15.13	16.77	17.09	17.14	17.27	17.69	16.77
India	16.41	19.30	18.81	19.93	22.72	19.41	21.75	22.76	22.92	23.13	20.51	21.25
Indonesia	16.09	16.67	16.51	15.94	15.96	16.09	16.58	16.02	17.67	18.20	18.25	17.08
Mexico	27.06	27.73	27.74	27.76	26.27	27.06	26.81	26.78	27.34	27.14	27.93	27.31
Pakistan	19.35	16.46	20.28	22.68	21.92	20.35	18.34	21.81	18.15	23.44	22.43	20.34
United States	44.43	44.44	46.44	44.94	44.69	44.43	45.78	46.36	47.15	46.90	48.64	46.78
Average	23.00	23.29	24.03	24.49	24.64	23.75	24.34	25.13	25.06	26.01	25.91	24.92