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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 4 |
| 1966 | 48 |
| 1967 | 66 |
| 1968 | 95 |
| 1969 | 89 |
| 1970 | 86 |
| 1971 | 104 |
| 1972 | 71 |
| 1973 | 105 |
| 1974 | 89 |
| 1975 | 82 |
| 1976 | 82 |
| 1977 | 70 |
| 1978 | 90 |
| 1979 | 75 |
| 1980 | 107 |
| 1981 | 87 |
| 1982 | 109 |
| 1983 | 93 |
| 1984 | 95 |
| 1985 | 121 |
| 1986 | 147 |
| 1987 | 141 |
| 1988 | 144 |
| 1989 | 157 |
| 1990 | 161 |
| 1991 | 129 |
| 1992 | 166 |
| 1993 | 186 |
| 1994 | 217 |
| 1995 | 211 |
| 1996 | 213 |
| 1997 | 271 |
| 1998 | 252 |
| 1999 | 320 |
| 2000 | 330 |
| 2001 | 290 |
| 2002 | 297 |
| 2003 | 344 |
| 2004 | 363 |
| 2005 | 346 |
| 2006 | 404 |
| 2007 | 442 |
| 2008 | 420 |
| 2009 | 406 |
| 2010 | 463 |
| 2011 | 465 |
| 2012 | 534 |
| 2013 | 524 |
| 2014 | 556 |
| 2015 | 486 |
| 2016 | 430 |
| 2017 | 454 |
| 2018 | 452 |
| 2019 | 449 |
| 2020 | 348 |
| 2021 | 254 |
| 2022 | 40 |
| 2023 | 6 |
| 2024 | 4 |