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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1971 | 2 |
| 1972 | 3 |
| 1976 | 1 |
| 1978 | 1 |
| 1981 | 1 |
| 1982 | 2 |
| 1983 | 1 |
| 1985 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1991 | 3 |
| 1992 | 5 |
| 1993 | 5 |
| 1994 | 5 |
| 1995 | 2 |
| 1996 | 5 |
| 1997 | 12 |
| 1998 | 10 |
| 1999 | 16 |
| 2000 | 32 |
| 2001 | 36 |
| 2002 | 38 |
| 2003 | 42 |
| 2004 | 37 |
| 2005 | 51 |
| 2006 | 63 |
| 2007 | 69 |
| 2008 | 82 |
| 2009 | 95 |
| 2010 | 97 |
| 2011 | 117 |
| 2012 | 120 |
| 2013 | 143 |
| 2014 | 129 |
| 2015 | 133 |
| 2016 | 123 |
| 2017 | 138 |
| 2018 | 112 |
| 2019 | 103 |
| 2020 | 107 |
| 2021 | 119 |
| 2022 | 112 |
| 2023 | 112 |
| 2024 | 96 |
| 2025 | 81 |