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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 14 |
| 1960 | 19 |
| 1961 | 26 |
| 1962 | 24 |
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 2 |
| 1973 | 2 |
| 1975 | 1 |
| 1976 | 3 |
| 1978 | 1 |
| 1979 | 2 |
| 1980 | 6 |
| 1981 | 1 |
| 1982 | 1 |
| 1984 | 1 |
| 1985 | 2 |
| 1986 | 1 |
| 1988 | 1 |
| 1989 | 4 |
| 1990 | 7 |
| 1991 | 113 |
| 1992 | 171 |
| 1993 | 187 |
| 1994 | 265 |
| 1995 | 256 |
| 1996 | 266 |
| 1997 | 361 |
| 1998 | 437 |
| 1999 | 564 |
| 2000 | 806 |
| 2001 | 737 |
| 2002 | 687 |
| 2003 | 565 |
| 2004 | 587 |
| 2005 | 700 |
| 2006 | 763 |
| 2007 | 695 |
| 2008 | 517 |
| 2009 | 460 |
| 2010 | 434 |
| 2011 | 403 |
| 2012 | 357 |
| 2013 | 356 |
| 2014 | 422 |
| 2015 | 382 |
| 2016 | 317 |
| 2017 | 327 |
| 2018 | 283 |
| 2019 | 293 |
| 2020 | 302 |
| 2021 | 306 |
| 2022 | 200 |
| 2023 | 155 |
| 2024 | 143 |