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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 76 |
| 1966 | 135 |
| 1967 | 145 |
| 1968 | 130 |
| 1969 | 133 |
| 1970 | 139 |
| 1971 | 158 |
| 1972 | 150 |
| 1973 | 133 |
| 1974 | 138 |
| 1975 | 133 |
| 1976 | 156 |
| 1977 | 158 |
| 1978 | 178 |
| 1979 | 175 |
| 1980 | 110 |
| 1981 | 48 |
| 1982 | 35 |
| 1983 | 43 |
| 1984 | 37 |
| 1985 | 25 |
| 1986 | 28 |
| 1987 | 28 |
| 1988 | 27 |
| 1989 | 33 |
| 1990 | 29 |
| 1991 | 33 |
| 1992 | 29 |
| 1993 | 34 |
| 1994 | 50 |
| 1995 | 62 |
| 1996 | 66 |
| 1997 | 78 |
| 1998 | 89 |
| 1999 | 94 |
| 2000 | 164 |
| 2001 | 119 |
| 2002 | 124 |
| 2003 | 140 |
| 2004 | 206 |
| 2005 | 208 |
| 2006 | 252 |
| 2007 | 263 |
| 2008 | 273 |
| 2009 | 299 |
| 2010 | 357 |
| 2011 | 418 |
| 2012 | 432 |
| 2013 | 435 |
| 2014 | 465 |
| 2015 | 470 |
| 2016 | 462 |
| 2017 | 448 |
| 2018 | 498 |
| 2019 | 557 |
| 2020 | 499 |
| 2021 | 428 |
| 2022 | 268 |
| 2023 | 314 |
| 2024 | 174 |