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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 3 |
| 1965 | 8 |
| 1966 | 14 |
| 1967 | 28 |
| 1968 | 23 |
| 1969 | 13 |
| 1970 | 18 |
| 1971 | 41 |
| 1972 | 24 |
| 1973 | 37 |
| 1974 | 39 |
| 1975 | 32 |
| 1976 | 32 |
| 1977 | 29 |
| 1978 | 17 |
| 1979 | 22 |
| 1980 | 27 |
| 1981 | 22 |
| 1982 | 19 |
| 1983 | 26 |
| 1984 | 34 |
| 1985 | 29 |
| 1986 | 43 |
| 1987 | 43 |
| 1988 | 40 |
| 1989 | 51 |
| 1990 | 75 |
| 1991 | 63 |
| 1992 | 75 |
| 1993 | 71 |
| 1994 | 109 |
| 1995 | 121 |
| 1996 | 117 |
| 1997 | 137 |
| 1998 | 124 |
| 1999 | 106 |
| 2000 | 152 |
| 2001 | 191 |
| 2002 | 161 |
| 2003 | 199 |
| 2004 | 216 |
| 2005 | 231 |
| 2006 | 250 |
| 2007 | 325 |
| 2008 | 355 |
| 2009 | 377 |
| 2010 | 422 |
| 2011 | 430 |
| 2012 | 442 |
| 2013 | 393 |
| 2014 | 401 |
| 2015 | 462 |
| 2016 | 427 |
| 2017 | 378 |
| 2018 | 448 |
| 2019 | 557 |
| 2020 | 428 |
| 2021 | 342 |
| 2022 | 458 |
| 2023 | 420 |
| 2024 | 136 |