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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 2 |
| 1966 | 8 |
| 1967 | 9 |
| 1968 | 21 |
| 1969 | 28 |
| 1970 | 29 |
| 1971 | 32 |
| 1972 | 30 |
| 1973 | 18 |
| 1974 | 34 |
| 1975 | 30 |
| 1976 | 23 |
| 1977 | 41 |
| 1978 | 31 |
| 1979 | 30 |
| 1980 | 55 |
| 1981 | 51 |
| 1982 | 44 |
| 1983 | 78 |
| 1984 | 40 |
| 1985 | 67 |
| 1986 | 53 |
| 1987 | 46 |
| 1988 | 67 |
| 1989 | 103 |
| 1990 | 90 |
| 1991 | 114 |
| 1992 | 101 |
| 1993 | 73 |
| 1994 | 89 |
| 1995 | 191 |
| 1996 | 161 |
| 1997 | 218 |
| 1998 | 241 |
| 1999 | 236 |
| 2000 | 258 |
| 2001 | 333 |
| 2002 | 332 |
| 2003 | 379 |
| 2004 | 412 |
| 2005 | 375 |
| 2006 | 409 |
| 2007 | 401 |
| 2008 | 461 |
| 2009 | 521 |
| 2010 | 543 |
| 2011 | 551 |
| 2012 | 605 |
| 2013 | 568 |
| 2014 | 537 |
| 2015 | 517 |
| 2016 | 501 |
| 2017 | 410 |
| 2018 | 398 |
| 2019 | 410 |
| 2020 | 307 |
| 2021 | 164 |
| 2022 | 21 |
| 2023 | 11 |
| 2024 | 71 |