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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1967 | 1 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 1 |
| 1975 | 4 |
| 1976 | 3 |
| 1977 | 8 |
| 1978 | 14 |
| 1979 | 14 |
| 1980 | 12 |
| 1981 | 17 |
| 1982 | 16 |
| 1983 | 11 |
| 1984 | 18 |
| 1985 | 21 |
| 1986 | 32 |
| 1987 | 62 |
| 1988 | 38 |
| 1989 | 89 |
| 1990 | 89 |
| 1991 | 84 |
| 1992 | 87 |
| 1993 | 84 |
| 1994 | 114 |
| 1995 | 76 |
| 1996 | 102 |
| 1997 | 111 |
| 1998 | 113 |
| 1999 | 118 |
| 2000 | 175 |
| 2001 | 192 |
| 2002 | 195 |
| 2003 | 207 |
| 2004 | 248 |
| 2005 | 261 |
| 2006 | 255 |
| 2007 | 310 |
| 2008 | 347 |
| 2009 | 291 |
| 2010 | 335 |
| 2011 | 421 |
| 2012 | 515 |
| 2013 | 529 |
| 2014 | 549 |
| 2015 | 634 |
| 2016 | 518 |
| 2017 | 633 |
| 2018 | 702 |
| 2019 | 537 |
| 2020 | 499 |
| 2021 | 204 |
| 2022 | 154 |
| 2023 | 127 |
| 2024 | 42 |