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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 2 |
| 1974 | 8 |
| 1975 | 24 |
| 1976 | 35 |
| 1977 | 33 |
| 1978 | 36 |
| 1979 | 51 |
| 1980 | 70 |
| 1981 | 65 |
| 1982 | 52 |
| 1983 | 44 |
| 1984 | 43 |
| 1985 | 25 |
| 1986 | 25 |
| 1987 | 24 |
| 1988 | 35 |
| 1989 | 28 |
| 1990 | 42 |
| 1991 | 43 |
| 1992 | 50 |
| 1993 | 62 |
| 1994 | 72 |
| 1995 | 35 |
| 1996 | 50 |
| 1997 | 76 |
| 1998 | 107 |
| 1999 | 93 |
| 2000 | 95 |
| 2001 | 118 |
| 2002 | 132 |
| 2003 | 125 |
| 2004 | 175 |
| 2005 | 188 |
| 2006 | 268 |
| 2007 | 302 |
| 2008 | 317 |
| 2009 | 339 |
| 2010 | 335 |
| 2011 | 363 |
| 2012 | 325 |
| 2013 | 417 |
| 2014 | 412 |
| 2015 | 473 |
| 2016 | 473 |
| 2017 | 496 |
| 2018 | 492 |
| 2019 | 450 |
| 2020 | 398 |
| 2021 | 216 |
| 2022 | 47 |
| 2023 | 27 |
| 2024 | 39 |