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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1960 | 1 |
| 1961 | 2 |
| 1971 | 2 |
| 1974 | 1 |
| 1976 | 2 |
| 1977 | 2 |
| 1978 | 1 |
| 1979 | 2 |
| 1981 | 1 |
| 1986 | 1 |
| 1988 | 2 |
| 1989 | 4 |
| 1991 | 7 |
| 1992 | 7 |
| 1993 | 4 |
| 1994 | 6 |
| 1995 | 7 |
| 1996 | 6 |
| 1997 | 5 |
| 1998 | 4 |
| 1999 | 13 |
| 2000 | 22 |
| 2001 | 67 |
| 2002 | 82 |
| 2003 | 78 |
| 2004 | 102 |
| 2005 | 124 |
| 2006 | 150 |
| 2007 | 196 |
| 2008 | 188 |
| 2009 | 217 |
| 2010 | 163 |
| 2011 | 155 |
| 2012 | 165 |
| 2013 | 170 |
| 2014 | 175 |
| 2015 | 169 |
| 2016 | 139 |
| 2017 | 140 |
| 2018 | 161 |
| 2019 | 129 |
| 2020 | 65 |
| 2021 | 35 |
| 2022 | 153 |
| 2023 | 108 |
| 2024 | 38 |