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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 25 |
| 1963 | 33 |
| 1964 | 47 |
| 1965 | 35 |
| 1966 | 43 |
| 1967 | 29 |
| 1968 | 42 |
| 1969 | 55 |
| 1970 | 52 |
| 1971 | 45 |
| 1972 | 65 |
| 1973 | 44 |
| 1974 | 38 |
| 1975 | 81 |
| 1976 | 101 |
| 1977 | 70 |
| 1978 | 68 |
| 1979 | 75 |
| 1980 | 78 |
| 1981 | 59 |
| 1982 | 85 |
| 1983 | 81 |
| 1984 | 105 |
| 1985 | 117 |
| 1986 | 122 |
| 1987 | 134 |
| 1988 | 135 |
| 1989 | 107 |
| 1990 | 130 |
| 1991 | 140 |
| 1992 | 144 |
| 1993 | 147 |
| 1994 | 129 |
| 1995 | 147 |
| 1996 | 146 |
| 1997 | 163 |
| 1998 | 184 |
| 1999 | 170 |
| 2000 | 249 |
| 2001 | 255 |
| 2002 | 260 |
| 2003 | 280 |
| 2004 | 271 |
| 2005 | 274 |
| 2006 | 248 |
| 2007 | 263 |
| 2008 | 276 |
| 2009 | 295 |
| 2010 | 369 |
| 2011 | 437 |
| 2012 | 404 |
| 2013 | 395 |
| 2014 | 368 |
| 2015 | 429 |
| 2016 | 441 |
| 2017 | 474 |
| 2018 | 449 |
| 2019 | 418 |
| 2020 | 398 |
| 2021 | 389 |
| 2022 | 309 |
| 2023 | 299 |
| 2024 | 304 |
| 2025 | 162 |