Each publication is determined by its (publication) date. The corresponding time is given for about 15% of the publications.
| decade | ~0 | ~1 | ~2 | ~3 | ~4 | ~5 | ~6 | ~7 | ~8 | ~9 | total | proportion | cumulative |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1880 | 2 | 2 | 0.00% | 0.00% | |||||||||
| 1890 | 3 | 2 | 5 | 0.00% | 0.00% | ||||||||
| 1900 | 1 | 4 | 2 | 2 | 2 | 11 | 0.00% | 0.00% | |||||
| 1910 | 74 | 842 | 1 030 | 959 | 826 | 844 | 851 | 634 | 782 | 6842 | 0.02% | 0.02% | |
| 1920 | 810 | 832 | 713 | 786 | 977 | 1 408 | 1 960 | 1 675 | 1 765 | 2 102 | 13028 | 0.04% | 0.07% |
| 1930 | 2 157 | 643 | 1 877 | 2 063 | 3 159 | 1 792 | 1 301 | 1 801 | 1 720 | 3 009 | 19522 | 0.07% | 0.14% |
| 1940 | 2 332 | 1 768 | 1 746 | 1 729 | 1 865 | 2 504 | 1 770 | 1 623 | 31 | 1 883 | 17251 | 0.06% | 0.19% |
| 1950 | 2 107 | 2 207 | 2 272 | 2 416 | 2 697 | 4 432 | 3 149 | 4 948 | 3 591 | 3 549 | 31368 | 0.11% | 0.30% |
| 1960 | 3 669 | 3 933 | 4 204 | 4 541 | 4 886 | 4 665 | 4 797 | 4 342 | 7 760 | 4 994 | 47791 | 0.16% | 0.47% |
| 1970 | 4 389 | 4 204 | 4 229 | 4 226 | 5 343 | 5 404 | 5 134 | 5 762 | 5 878 | 7 249 | 51818 | 0.18% | 0.64% |
| 1980 | 7 930 | 270 | 351 | 640 | 757 | 1 092 | 914 | 1 088 | 7 592 | 13 101 | 33735 | 0.12% | 0.76% |
| 1990 | 3 582 | 4 277 | 5 756 | 22 382 | 107 706 | 140 399 | 178 435 | 210 427 | 304 340 | 414 618 | 1391922 | 4.77% | 5.53% |
| 2000 | 526 973 | 546 670 | 611 208 | 586 772 | 658 652 | 698 570 | 785 693 | 876 364 | 974 611 | 1 029 262 | 7294775 | 25.00% | 30.53% |
| 2010 | 975 755 | 955 227 | 999 463 | 1 045 986 | 1 040 606 | 1 037 334 | 1 156 195 | 1 185 990 | 1 312 714 | 1 326 625 | 11035895 | 37.83% | 68.36% |
| 2020 | 1 511 124 | 1 635 887 | 1 592 525 | 1 409 683 | 1 398 228 | 1 278 344 | 405 418 | 9231209 | 31.64% | 100.00% |