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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 39 |
| 1967 | 31 |
| 1968 | 72 |
| 1969 | 87 |
| 1970 | 100 |
| 1971 | 112 |
| 1972 | 137 |
| 1973 | 161 |
| 1974 | 153 |
| 1975 | 157 |
| 1976 | 177 |
| 1977 | 161 |
| 1978 | 160 |
| 1979 | 170 |
| 1980 | 185 |
| 1981 | 208 |
| 1982 | 191 |
| 1983 | 203 |
| 1984 | 190 |
| 1985 | 183 |
| 1986 | 298 |
| 1987 | 318 |
| 1988 | 299 |
| 1989 | 324 |
| 1990 | 323 |
| 1991 | 326 |
| 1992 | 407 |
| 1993 | 389 |
| 1994 | 399 |
| 1995 | 423 |
| 1996 | 422 |
| 1997 | 450 |
| 1998 | 448 |
| 1999 | 444 |
| 2000 | 446 |
| 2001 | 471 |
| 2002 | 449 |
| 2003 | 487 |
| 2004 | 471 |
| 2005 | 517 |
| 2006 | 535 |
| 2007 | 518 |
| 2008 | 587 |
| 2009 | 570 |
| 2010 | 556 |
| 2011 | 571 |
| 2012 | 553 |
| 2013 | 629 |
| 2014 | 583 |
| 2015 | 617 |
| 2016 | 614 |
| 2017 | 684 |
| 2018 | 730 |
| 2019 | 775 |
| 2020 | 795 |
| 2021 | 735 |
| 2022 | 697 |
| 2023 | 610 |
| 2024 | 674 |
| 2025 | 558 |