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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 4 |
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 8 |
| 1968 | 5 |
| 1969 | 1 |
| 1971 | 2 |
| 1972 | 2 |
| 1973 | 2 |
| 1974 | 1 |
| 1975 | 2 |
| 1978 | 3 |
| 1985 | 1 |
| 1986 | 1 |
| 1988 | 2 |
| 1989 | 14 |
| 1990 | 9 |
| 1991 | 4 |
| 1998 | 14 |
| 1999 | 13 |
| 2000 | 15 |
| 2001 | 22 |
| 2002 | 44 |
| 2003 | 69 |
| 2004 | 91 |
| 2005 | 75 |
| 2006 | 92 |
| 2007 | 133 |
| 2008 | 119 |
| 2009 | 164 |
| 2010 | 162 |
| 2011 | 156 |
| 2012 | 110 |
| 2013 | 115 |
| 2014 | 82 |
| 2015 | 56 |
| 2016 | 55 |
| 2017 | 31 |
| 2018 | 23 |
| 2019 | 12 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 1 |
| 2024 | 0 |