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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 3 |
| 1965 | 15 |
| 1966 | 58 |
| 1967 | 68 |
| 1968 | 38 |
| 1972 | 1 |
| 1974 | 1 |
| 1975 | 1 |
| 1976 | 2 |
| 1977 | 5 |
| 1978 | 1 |
| 1979 | 2 |
| 1984 | 2 |
| 1985 | 3 |
| 1987 | 5 |
| 1988 | 11 |
| 1989 | 90 |
| 1990 | 303 |
| 1991 | 307 |
| 1992 | 380 |
| 1993 | 349 |
| 1994 | 352 |
| 1995 | 346 |
| 1996 | 382 |
| 1997 | 387 |
| 1998 | 438 |
| 1999 | 491 |
| 2000 | 436 |
| 2001 | 478 |
| 2002 | 519 |
| 2003 | 491 |
| 2004 | 531 |
| 2005 | 655 |
| 2006 | 732 |
| 2007 | 753 |
| 2008 | 770 |
| 2009 | 785 |
| 2010 | 810 |
| 2011 | 959 |
| 2012 | 881 |
| 2013 | 1012 |
| 2014 | 1150 |
| 2015 | 1205 |
| 2016 | 1158 |
| 2017 | 1038 |
| 2018 | 1114 |
| 2019 | 1110 |
| 2020 | 881 |
| 2021 | 524 |
| 2022 | 132 |
| 2023 | 84 |
| 2024 | 148 |