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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 4 |
| 1970 | 3 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 3 |
| 1974 | 2 |
| 1975 | 24 |
| 1976 | 9 |
| 1977 | 22 |
| 1978 | 23 |
| 1979 | 21 |
| 1980 | 32 |
| 1981 | 24 |
| 1982 | 23 |
| 1983 | 36 |
| 1984 | 37 |
| 1985 | 33 |
| 1986 | 29 |
| 1987 | 35 |
| 1988 | 41 |
| 1989 | 42 |
| 1990 | 47 |
| 1991 | 51 |
| 1992 | 56 |
| 1993 | 49 |
| 1994 | 59 |
| 1995 | 48 |
| 1996 | 77 |
| 1997 | 79 |
| 1998 | 63 |
| 1999 | 99 |
| 2000 | 105 |
| 2001 | 127 |
| 2002 | 119 |
| 2003 | 123 |
| 2004 | 169 |
| 2005 | 188 |
| 2006 | 236 |
| 2007 | 221 |
| 2008 | 268 |
| 2009 | 287 |
| 2010 | 314 |
| 2011 | 322 |
| 2012 | 410 |
| 2013 | 454 |
| 2014 | 396 |
| 2015 | 426 |
| 2016 | 329 |
| 2017 | 299 |
| 2018 | 370 |
| 2019 | 382 |
| 2020 | 448 |
| 2021 | 508 |
| 2022 | 520 |
| 2023 | 409 |
| 2024 | 157 |