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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 1 |
| 1971 | 8 |
| 1972 | 19 |
| 1973 | 24 |
| 1974 | 22 |
| 1975 | 28 |
| 1976 | 22 |
| 1977 | 19 |
| 1978 | 13 |
| 1979 | 12 |
| 1980 | 20 |
| 1981 | 15 |
| 1982 | 22 |
| 1983 | 32 |
| 1984 | 37 |
| 1985 | 65 |
| 1986 | 50 |
| 1987 | 72 |
| 1988 | 60 |
| 1989 | 98 |
| 1990 | 84 |
| 1991 | 119 |
| 1992 | 118 |
| 1993 | 156 |
| 1994 | 184 |
| 1995 | 159 |
| 1996 | 138 |
| 1997 | 130 |
| 1998 | 139 |
| 1999 | 167 |
| 2000 | 175 |
| 2001 | 169 |
| 2002 | 224 |
| 2003 | 236 |
| 2004 | 181 |
| 2005 | 174 |
| 2006 | 214 |
| 2007 | 242 |
| 2008 | 258 |
| 2009 | 211 |
| 2010 | 224 |
| 2011 | 196 |
| 2012 | 169 |
| 2013 | 164 |
| 2014 | 175 |
| 2015 | 163 |
| 2016 | 127 |
| 2017 | 135 |
| 2018 | 138 |
| 2019 | 111 |
| 2020 | 130 |
| 2021 | 57 |
| 2022 | 14 |
| 2023 | 5 |
| 2024 | 1 |