Region 1820 to 1829 1830 to 1839 1840 to 1849 1850 to 1859 1860 to 1869 1870 to 1879 1880 to 1889 1890 to 1899 1900 to 1909 1910 to 1919 1920 to 1929 1930 to 1939 1940 to 1949 1950 to 1959 1960 to 1969 1970 to 1979 1980 to 1989 1990 to 1999 2000 to 2009
Europe 99,618 422,853 1,369,423 2,622,617 1,880,389 2,252,050 4,638,684 3,576,411 7,572,569 4,985,411 2,560,340 444,404 472,524 1,404,973 1,133,443 826,327 669,694 1,349,219 1,349,609
Asia 34 55 121 36,080 54,408 134,071 71,152 61,304 300,441 269,736 126,740 19,292 34,532 135,844 358,563 1,406,526 2,391,356 2,859,899 3,470,835
America 9,656 31,911 50,527 84,201 130,427 345,889 529,845 38,756 277,882 1,070,539 1,591,278 230,319 328,435 921,644 1,674,185 1,903,636 2,694,504 5,137,142 4,441,529
Africa 19 66 67 104 458 441 768 432 6,326 8,867 6,362 2,120 6,720 13,016 23,780 71,405 141,987 346,410 759,734
Oceania 2 1 3 110 107 9,094 7,341 3,279 11,677 12,339 9,860 3,240 14,262 11,319 23,659 39,983 41,432 56,800 65,793
Not Specified 19,173 83,495 7,196 71,442 15,472 592 778 14,112 33,493 488 930 . 135 12,472 119 326 305,406 25,928 211,930
  128,502 538,381 1,427,337 2,814,554 2,081,261 2,742,137 5,248,568 3,694,294 8,202,388 6,347,380 4,295,510 699,375 856,608 2,499,268 3,213,749 4,248,203 6,244,379 9,775,398 10,299,430