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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 |
| 1968 | 1 |
| 1971 | 1 |
| 1972 | 3 |
| 1973 | 7 |
| 1974 | 19 |
| 1975 | 16 |
| 1976 | 18 |
| 1977 | 13 |
| 1978 | 16 |
| 1979 | 14 |
| 1980 | 14 |
| 1981 | 13 |
| 1982 | 21 |
| 1983 | 21 |
| 1984 | 13 |
| 1985 | 14 |
| 1986 | 17 |
| 1987 | 34 |
| 1988 | 29 |
| 1989 | 51 |
| 1990 | 67 |
| 1991 | 62 |
| 1992 | 62 |
| 1993 | 67 |
| 1994 | 59 |
| 1995 | 78 |
| 1996 | 60 |
| 1997 | 61 |
| 1998 | 82 |
| 1999 | 88 |
| 2000 | 84 |
| 2001 | 87 |
| 2002 | 85 |
| 2003 | 100 |
| 2004 | 96 |
| 2005 | 139 |
| 2006 | 135 |
| 2007 | 155 |
| 2008 | 182 |
| 2009 | 204 |
| 2010 | 207 |
| 2011 | 182 |
| 2012 | 184 |
| 2013 | 233 |
| 2014 | 239 |
| 2015 | 262 |
| 2016 | 233 |
| 2017 | 268 |
| 2018 | 334 |
| 2019 | 344 |
| 2020 | 476 |
| 2021 | 422 |
| 2022 | 311 |
| 2023 | 267 |
| 2024 | 93 |