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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1970 | 6 |
| 1971 | 34 |
| 1972 | 70 |
| 1973 | 102 |
| 1974 | 134 |
| 1975 | 212 |
| 1976 | 184 |
| 1977 | 211 |
| 1978 | 197 |
| 1979 | 243 |
| 1980 | 254 |
| 1981 | 269 |
| 1982 | 340 |
| 1983 | 309 |
| 1984 | 333 |
| 1985 | 354 |
| 1986 | 378 |
| 1987 | 367 |
| 1988 | 392 |
| 1989 | 516 |
| 1990 | 534 |
| 1991 | 527 |
| 1992 | 483 |
| 1993 | 534 |
| 1994 | 499 |
| 1995 | 619 |
| 1996 | 536 |
| 1997 | 630 |
| 1998 | 644 |
| 1999 | 636 |
| 2000 | 737 |
| 2001 | 657 |
| 2002 | 712 |
| 2003 | 699 |
| 2004 | 760 |
| 2005 | 743 |
| 2006 | 836 |
| 2007 | 793 |
| 2008 | 848 |
| 2009 | 849 |
| 2010 | 927 |
| 2011 | 922 |
| 2012 | 925 |
| 2013 | 945 |
| 2014 | 862 |
| 2015 | 843 |
| 2016 | 797 |
| 2017 | 714 |
| 2018 | 724 |
| 2019 | 677 |
| 2020 | 623 |
| 2021 | 562 |
| 2022 | 411 |
| 2023 | 356 |
| 2024 | 230 |