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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 1 |
| 1959 | 6 |
| 1960 | 14 |
| 1961 | 18 |
| 1962 | 21 |
| 1966 | 1 |
| 1968 | 6 |
| 1969 | 9 |
| 1970 | 6 |
| 1971 | 5 |
| 1972 | 4 |
| 1973 | 6 |
| 1974 | 1 |
| 1975 | 3 |
| 1976 | 3 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 3 |
| 1981 | 1 |
| 1982 | 2 |
| 1984 | 1 |
| 1985 | 6 |
| 1986 | 1 |
| 1987 | 4 |
| 1988 | 4 |
| 1989 | 2 |
| 1990 | 8 |
| 1991 | 49 |
| 1992 | 47 |
| 1993 | 49 |
| 1994 | 33 |
| 1995 | 78 |
| 1996 | 62 |
| 1997 | 59 |
| 1998 | 76 |
| 1999 | 91 |
| 2000 | 127 |
| 2001 | 153 |
| 2002 | 201 |
| 2003 | 192 |
| 2004 | 230 |
| 2005 | 316 |
| 2006 | 363 |
| 2007 | 369 |
| 2008 | 398 |
| 2009 | 425 |
| 2010 | 428 |
| 2011 | 472 |
| 2012 | 555 |
| 2013 | 556 |
| 2014 | 565 |
| 2015 | 550 |
| 2016 | 477 |
| 2017 | 452 |
| 2018 | 458 |
| 2019 | 459 |
| 2020 | 312 |
| 2021 | 166 |
| 2022 | 163 |
| 2023 | 120 |
| 2024 | 38 |