| Region | 2007 (millions) | 2012 (millions) | Growth | |
| Africa | 34 | 140 | 311% | |
| Asia | 418 | 1017 | 143% | |
| Europe | 322 | 501 | 56% | |
| Middle East | 20 | 77 | 285% | |
| North America | 233 | 273 | 17% | |
| Latin America | 110 | 236 | 115% | |
| Oceania | 19 | 24 | 26% | |
| Worldwide | 1156 | 2268 | 96% | |