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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 2 |
| 1960 | 2 |
| 1961 | 3 |
| 1962 | 2 |
| 1975 | 1 |
| 1977 | 2 |
| 1978 | 8 |
| 1979 | 16 |
| 1980 | 16 |
| 1981 | 11 |
| 1982 | 11 |
| 1983 | 12 |
| 1984 | 17 |
| 1985 | 12 |
| 1986 | 22 |
| 1987 | 23 |
| 1988 | 21 |
| 1989 | 31 |
| 1990 | 31 |
| 1991 | 27 |
| 1992 | 26 |
| 1993 | 33 |
| 1994 | 39 |
| 1995 | 77 |
| 1996 | 60 |
| 1997 | 92 |
| 1998 | 108 |
| 1999 | 109 |
| 2000 | 135 |
| 2001 | 148 |
| 2002 | 138 |
| 2003 | 156 |
| 2004 | 157 |
| 2005 | 170 |
| 2006 | 181 |
| 2007 | 193 |
| 2008 | 165 |
| 2009 | 162 |
| 2010 | 168 |
| 2011 | 211 |
| 2012 | 195 |
| 2013 | 205 |
| 2014 | 200 |
| 2015 | 188 |
| 2016 | 180 |
| 2017 | 191 |
| 2018 | 177 |
| 2019 | 157 |
| 2020 | 141 |
| 2021 | 153 |
| 2022 | 107 |
| 2023 | 98 |
| 2024 | 27 |