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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 3 |
| 1962 | 3 |
| 1969 | 1 |
| 1970 | 2 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 3 |
| 1974 | 8 |
| 1975 | 18 |
| 1976 | 22 |
| 1977 | 30 |
| 1978 | 28 |
| 1979 | 29 |
| 1980 | 29 |
| 1981 | 41 |
| 1982 | 35 |
| 1983 | 30 |
| 1984 | 43 |
| 1985 | 61 |
| 1986 | 42 |
| 1987 | 30 |
| 1988 | 40 |
| 1989 | 30 |
| 1990 | 9 |
| 1991 | 29 |
| 1992 | 29 |
| 1993 | 27 |
| 1994 | 34 |
| 1995 | 40 |
| 1996 | 37 |
| 1997 | 40 |
| 1998 | 56 |
| 1999 | 54 |
| 2000 | 69 |
| 2001 | 109 |
| 2002 | 136 |
| 2003 | 142 |
| 2004 | 192 |
| 2005 | 254 |
| 2006 | 269 |
| 2007 | 315 |
| 2008 | 366 |
| 2009 | 406 |
| 2010 | 414 |
| 2011 | 461 |
| 2012 | 532 |
| 2013 | 528 |
| 2014 | 517 |
| 2015 | 503 |
| 2016 | 444 |
| 2017 | 422 |
| 2018 | 434 |
| 2019 | 433 |
| 2020 | 359 |
| 2021 | 224 |
| 2022 | 133 |
| 2023 | 87 |
| 2024 | 66 |