Year Europe/Canada and other North America Asia Other Latin America Mexico
1960 84% 4% 3% 6%
1970 68% 7% 11% 8%
1980 42% 16% 16% 16%
1990 26% 22% 21% 22%
2000 19% 23% 22% 29%
2010 14% 25% 24% 29%
2015 13% 27% 24% 27%
2018 13% 28% 25% 25%