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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 | 5 |
| 1966 | 22 |
| 1967 | 23 |
| 1968 | 31 |
| 1969 | 48 |
| 1970 | 49 |
| 1971 | 52 |
| 1972 | 69 |
| 1973 | 79 |
| 1974 | 81 |
| 1975 | 72 |
| 1976 | 54 |
| 1977 | 55 |
| 1978 | 68 |
| 1979 | 54 |
| 1980 | 56 |
| 1981 | 65 |
| 1982 | 63 |
| 1983 | 83 |
| 1984 | 88 |
| 1985 | 84 |
| 1986 | 101 |
| 1987 | 102 |
| 1988 | 101 |
| 1989 | 119 |
| 1990 | 113 |
| 1991 | 150 |
| 1992 | 135 |
| 1993 | 155 |
| 1994 | 144 |
| 1995 | 156 |
| 1996 | 165 |
| 1997 | 197 |
| 1998 | 178 |
| 1999 | 178 |
| 2000 | 167 |
| 2001 | 174 |
| 2002 | 226 |
| 2003 | 243 |
| 2004 | 309 |
| 2005 | 299 |
| 2006 | 305 |
| 2007 | 296 |
| 2008 | 357 |
| 2009 | 444 |
| 2010 | 438 |
| 2011 | 462 |
| 2012 | 501 |
| 2013 | 468 |
| 2014 | 506 |
| 2015 | 542 |
| 2016 | 459 |
| 2017 | 443 |
| 2018 | 460 |
| 2019 | 450 |
| 2020 | 378 |
| 2021 | 309 |
| 2022 | 292 |
| 2023 | 258 |
| 2024 | 149 |