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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1966 | 1 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 1 |
| 1973 | 2 |
| 1974 | 21 |
| 1975 | 31 |
| 1976 | 38 |
| 1977 | 33 |
| 1978 | 31 |
| 1979 | 31 |
| 1980 | 41 |
| 1981 | 27 |
| 1982 | 42 |
| 1983 | 61 |
| 1984 | 60 |
| 1985 | 65 |
| 1986 | 49 |
| 1987 | 60 |
| 1988 | 49 |
| 1989 | 100 |
| 1990 | 197 |
| 1991 | 208 |
| 1992 | 174 |
| 1993 | 186 |
| 1994 | 201 |
| 1995 | 179 |
| 1996 | 198 |
| 1997 | 212 |
| 1998 | 242 |
| 1999 | 259 |
| 2000 | 250 |
| 2001 | 321 |
| 2002 | 281 |
| 2003 | 264 |
| 2004 | 302 |
| 2005 | 302 |
| 2006 | 341 |
| 2007 | 332 |
| 2008 | 380 |
| 2009 | 365 |
| 2010 | 450 |
| 2011 | 507 |
| 2012 | 458 |
| 2013 | 517 |
| 2014 | 467 |
| 2015 | 479 |
| 2016 | 421 |
| 2017 | 459 |
| 2018 | 442 |
| 2019 | 444 |
| 2020 | 445 |
| 2021 | 332 |
| 2022 | 288 |
| 2023 | 285 |
| 2024 | 330 |
| 2025 | 190 |