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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 2 |
| 1962 | 1 |
| 1964 | 3 |
| 1966 | 1 |
| 1967 | 3 |
| 1969 | 1 |
| 1970 | 10 |
| 1973 | 1 |
| 1974 | 11 |
| 1975 | 7 |
| 1976 | 7 |
| 1977 | 11 |
| 1978 | 6 |
| 1979 | 3 |
| 1980 | 2 |
| 1981 | 1 |
| 1982 | 6 |
| 1983 | 1 |
| 1984 | 2 |
| 1987 | 1 |
| 1989 | 1 |
| 1991 | 1 |
| 1993 | 1 |
| 1997 | 1 |
| 1998 | 4 |
| 2000 | 1 |
| 2001 | 8 |
| 2002 | 31 |
| 2003 | 47 |
| 2004 | 55 |
| 2005 | 67 |
| 2006 | 84 |
| 2007 | 117 |
| 2008 | 131 |
| 2009 | 128 |
| 2010 | 158 |
| 2011 | 170 |
| 2012 | 179 |
| 2013 | 169 |
| 2014 | 184 |
| 2015 | 172 |
| 2016 | 153 |
| 2017 | 142 |
| 2018 | 142 |
| 2019 | 147 |
| 2020 | 120 |
| 2021 | 137 |
| 2022 | 102 |
| 2023 | 107 |
| 2024 | 131 |
| 2025 | 124 |