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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1972 | 6 |
| 1973 | 6 |
| 1974 | 13 |
| 1975 | 9 |
| 1976 | 5 |
| 1977 | 19 |
| 1978 | 42 |
| 1979 | 45 |
| 1980 | 52 |
| 1981 | 53 |
| 1982 | 60 |
| 1983 | 60 |
| 1984 | 62 |
| 1985 | 69 |
| 1986 | 63 |
| 1987 | 75 |
| 1988 | 90 |
| 1989 | 97 |
| 1990 | 84 |
| 1991 | 99 |
| 1992 | 124 |
| 1993 | 183 |
| 1994 | 142 |
| 1995 | 176 |
| 1996 | 168 |
| 1997 | 159 |
| 1998 | 176 |
| 1999 | 199 |
| 2000 | 224 |
| 2001 | 280 |
| 2002 | 222 |
| 2003 | 171 |
| 2004 | 210 |
| 2005 | 200 |
| 2006 | 184 |
| 2007 | 192 |
| 2008 | 173 |
| 2009 | 165 |
| 2010 | 211 |
| 2011 | 248 |
| 2012 | 214 |
| 2013 | 203 |
| 2014 | 145 |
| 2015 | 173 |
| 2016 | 169 |
| 2017 | 192 |
| 2018 | 173 |
| 2019 | 169 |
| 2020 | 106 |
| 2021 | 77 |
| 2022 | 107 |
| 2023 | 80 |
| 2024 | 28 |