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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1971 | 3 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 2 |
| 1975 | 1 |
| 1977 | 1 |
| 1983 | 1 |
| 1984 | 1 |
| 1986 | 3 |
| 1988 | 1 |
| 1990 | 8 |
| 1991 | 37 |
| 1992 | 34 |
| 1993 | 25 |
| 1994 | 36 |
| 1995 | 48 |
| 1996 | 31 |
| 1997 | 54 |
| 1998 | 60 |
| 1999 | 65 |
| 2000 | 103 |
| 2001 | 128 |
| 2002 | 99 |
| 2003 | 119 |
| 2004 | 152 |
| 2005 | 170 |
| 2006 | 150 |
| 2007 | 164 |
| 2008 | 187 |
| 2009 | 175 |
| 2010 | 145 |
| 2011 | 154 |
| 2012 | 158 |
| 2013 | 148 |
| 2014 | 196 |
| 2015 | 184 |
| 2016 | 174 |
| 2017 | 156 |
| 2018 | 157 |
| 2019 | 119 |
| 2020 | 114 |
| 2021 | 80 |
| 2022 | 40 |
| 2023 | 28 |
| 2024 | 13 |