| Country | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Algeria | $48,993 | $6,836 | | | | | |
| Argentina | $4,114 | $8,910 | | | | | |
| Australia | $12,725 | $3,205 | | | | | |
| Austria | $74,456 | $95,682 | | | | | |
| Bahrain | | | | $1,205 | | | |
| Bangladesh | $115,331 | $99,137 | $52,220 | | | | |
| Belarus | $2,400 | $46,500 | $95,800 | | | | |
| Belgium | $78,349 | $88,061 | | | | | |
| Bhutan | $10,239 | $104 | | | | | |
| Bosnia and Herzegovina | $4,280 | $2,679 | | | | | |
| Botswana | $921 | $5,151 | $249 | | | | $1,185 |
| Brazil | $35,533 | $53,067 | | | | | |
| Bulgaria | $1,978 | | | | | | |
| Burundi | | | | | $30 | | |
| Cambodia | $155 | $406 | | | | | |
| Cameroon | $32,696 | $24,734 | $56,343 | $42,244 | $24,056 | $30,631 | |
| Canada | $67,374 | $93,088 | | | | | |
| Chile | $4,226 | $11,464 | | | | | |
| China | $3,974,019 | $2,227,060 | | | | | |
| Colombia | $35,863 | $23,439 | | | | | |
| Costa Rica | $10,435 | $21,032 | | | | | |
| Cote d'Ivoire | $1,760 | $32,170 | $31,626 | | | | |
| Croatia | $9,280 | $1,839 | | | | | |
| Czech Republic | $3,294 | $8,845 | | | | | |
| Dominican Republic | $264 | | | | | | |
| Ecuador | $2,732 | $770 | | | | | |
| Egypt | $78,027 | $20,329 | $17,654 | | | | |
| Estonia | $9,929 | | | | | | |
| Ethiopia | $31,374 | $169,247 | $20,881 | | | | |
| Faroe Islands | $475 | | | | | | |
| Finland | $1,342 | $50,808 | | | | | |
| France | $29,863 | $82,866 | | | | | |
| Germany | $15,000 | $10,000 | | | | | |
| Ghana | $148,579 | $1,382 | $8,725 | $55,054 | $16 | | |
| Greece | | $23,139 | | | | | |
| Guatemala | $494 | $15,181 | | | | | |
| Honduras | | $892 | | | | | |
| Iceland | $331 | | | | | | |
| India | $8,849,950 | $5,505,311 | $151,413 | | | | |
| Indonesia | $335,302 | $346,548 | $316,560 | $381,537 | $475,071 | | |
| Iran | $118,813 | $8,023 | | | | $8,612 | |
| Ireland | | $2,468 | | | | | |
| Italy | $44,514 | $225,055 | | | | | |
| Japan | $68,735 | $36,647 | | | | | |
| Jordan | | $7,777 | | | | | |
| Kenya | $42,071 | $31,069 | $1,004 | | | | |
| Korea, South | $8,931 | $3,771 | | | | | |
| Kuwait | | $6,175 | $14,520 | $398 | | | |
| Latvia | | $53,168 | | | | | |
| Lithuania | $1,463 | $15,324 | | | | | |
| Macedonia | | $2,666 | | | | | |
| Madagascar | $748 | $240 | | | | | |
| Malawi | $3,266 | | $12,651 | | | | |
| Malaysia | $42,249 | $293,448 | $12,954 | | | | |
| Mali | $9,756 | | | | | | |
| Mauritius | $289 | $741 | | | | | |
| Mexico | $78,126 | $64,251 | $35,984 | | | | |
| Moldova | $9,659 | $14,344 | $2,639 | $535 | | | |
| Mongolia | $2,605 | $419 | | | | | |
| Morocco | $21,497 | $16,295 | $42,144 | $14,416 | $46,783 | $38,372 | |
| Mozambique | | $1,588 | | | $117 | | |
| Netherlands | $90,751 | $5,025 | | | | | |
| New Zealand | $1,257 | | | | | | |
| Nicaragua | $2,250 | $383 | | | | | |
| Nigeria | | $64,285 | $438,467 | $120,445 | | | |
| Norway | $14,619 | $10,696 | | | | | |
| Pakistan | $110,210 | $119,191 | $38,346 | | | | |
| Peru | $12,974 | $17,769 | $31,978 | | | | |
| Philippines | $8,720 | $11,134 | $33,426 | $7,842 | $15,493 | $3,424 | |
| Poland | $8,477 | $8,455 | | | | | |
| Portugal | $97,133 | $15,240 | | | | | |
| Qatar | $60,975 | $478 | $3,065 | | | | |
| Romania | $25,171 | $24,810 | | | | | |
| Russia | $7,191 | $8,577 | | | | | |
| Sao Tome and Principe | | | | | $371 | | |
| Saudi Arabia | $30,271 | $16,746 | | | | | |
| Serbia | $2,856 | $1,491 | | | | | |
| Singapore | $27,929 | $232,007 | | | | | |
| South Africa | $165,759 | $128,931 | | | | | |
| Spain | $35,496 | $53,533 | | | | | |
| Sri Lanka | $8,651 | $20,820 | $7,150 | | | | |
| Sudan | $3,797 | $7,376 | | | | | |
| Swaziland | $6,868 | $419 | $1,544 | | | | |
| Sweden | $39,247 | $61,545 | | | | | |
| Switzerland | $216,647 | $16,972 | | | | | |
| Syria | | $44,632 | $93,086 | | | | |
| Tanzania | $73,179 | $1,010,651 | $86,829 | | | | |
| Thailand | $333,237 | $338,664 | | | | | |
| Tunisia | $9,861 | $16,852 | $3,340 | | | | |
| Turkey | $683,940 | $778,399 | | | | | |
| Uganda | $6,088 | $1,972 | | | | | |
| Ukraine | $845 | $26,619 | $12,125 | $5,140 | $5,483 | $10,333 | |
| United Arab Emirates | $8,085 | | $44,446 | | | | |
| United Kingdom | $25,755 | $17,540 | | | | | |
| United States | $122,378 | $89,664 | | | | | |
| Uruguay | | $778 | | | | | |
| Vanuatu | | $16 | | | | | |
| Venezuela | $5,527 | $5,388 | | $2,503 | $5,159 | $8,593 | $6,402 |
| Vietnam | $285,372 | $295,963 | $288,015 | | | | |
| Yemen | | | $1,704 | $11,215 | | | |
| Zambia | $1,068 | $751 | | | | | |
| Zimbabwe | $8,225 | $1,879 | | | | | |
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