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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 13 |
| 1960 | 21 |
| 1961 | 21 |
| 1962 | 19 |
| 1963 | 1 |
| 1964 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1971 | 2 |
| 1972 | 4 |
| 1973 | 1 |
| 1974 | 2 |
| 1976 | 2 |
| 1977 | 1 |
| 1978 | 1 |
| 1980 | 1 |
| 1988 | 1 |
| 1989 | 5 |
| 1990 | 34 |
| 1991 | 108 |
| 1992 | 93 |
| 1993 | 96 |
| 1994 | 91 |
| 1995 | 84 |
| 1996 | 105 |
| 1997 | 95 |
| 1998 | 107 |
| 1999 | 95 |
| 2000 | 103 |
| 2001 | 125 |
| 2002 | 134 |
| 2003 | 141 |
| 2004 | 146 |
| 2005 | 132 |
| 2006 | 117 |
| 2007 | 126 |
| 2008 | 136 |
| 2009 | 133 |
| 2010 | 116 |
| 2011 | 132 |
| 2012 | 119 |
| 2013 | 136 |
| 2014 | 116 |
| 2015 | 131 |
| 2016 | 150 |
| 2017 | 128 |
| 2018 | 123 |
| 2019 | 138 |
| 2020 | 109 |
| 2021 | 110 |
| 2022 | 44 |
| 2023 | 42 |
| 2024 | 31 |