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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1968 | 2 |
| 1969 | 1 |
| 1975 | 1 |
| 1976 | 1 |
| 1978 | 2 |
| 1979 | 9 |
| 1980 | 30 |
| 1981 | 74 |
| 1982 | 76 |
| 1983 | 81 |
| 1984 | 93 |
| 1985 | 101 |
| 1986 | 111 |
| 1987 | 126 |
| 1988 | 160 |
| 1989 | 138 |
| 1990 | 159 |
| 1991 | 204 |
| 1992 | 187 |
| 1993 | 203 |
| 1994 | 192 |
| 1995 | 236 |
| 1996 | 296 |
| 1997 | 343 |
| 1998 | 432 |
| 1999 | 464 |
| 2000 | 514 |
| 2001 | 614 |
| 2002 | 718 |
| 2003 | 928 |
| 2004 | 1103 |
| 2005 | 1401 |
| 2006 | 1669 |
| 2007 | 2306 |
| 2008 | 3115 |
| 2009 | 3380 |
| 2010 | 3773 |
| 2011 | 4056 |
| 2012 | 4176 |
| 2013 | 4289 |
| 2014 | 4132 |
| 2015 | 4102 |
| 2016 | 4057 |
| 2017 | 3975 |
| 2018 | 4147 |
| 2019 | 4019 |
| 2020 | 4319 |
| 2021 | 4529 |
| 2022 | 4043 |
| 2023 | 4373 |
| 2024 | 3960 |
| 2025 | 1463 |