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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1960 | 1 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 3 |
| 1971 | 1 |
| 1972 | 1 |
| 1974 | 1 |
| 1975 | 31 |
| 1976 | 37 |
| 1977 | 21 |
| 1978 | 22 |
| 1979 | 22 |
| 1980 | 16 |
| 1981 | 19 |
| 1982 | 16 |
| 1983 | 17 |
| 1984 | 18 |
| 1985 | 22 |
| 1986 | 10 |
| 1987 | 23 |
| 1988 | 22 |
| 1989 | 37 |
| 1990 | 31 |
| 1991 | 55 |
| 1992 | 47 |
| 1993 | 61 |
| 1994 | 57 |
| 1995 | 65 |
| 1996 | 58 |
| 1997 | 73 |
| 1998 | 66 |
| 1999 | 74 |
| 2000 | 82 |
| 2001 | 119 |
| 2002 | 89 |
| 2003 | 98 |
| 2004 | 111 |
| 2005 | 106 |
| 2006 | 161 |
| 2007 | 150 |
| 2008 | 180 |
| 2009 | 158 |
| 2010 | 165 |
| 2011 | 174 |
| 2012 | 190 |
| 2013 | 191 |
| 2014 | 194 |
| 2015 | 168 |
| 2016 | 169 |
| 2017 | 177 |
| 2018 | 160 |
| 2019 | 137 |
| 2020 | 124 |
| 2021 | 109 |
| 2022 | 106 |
| 2023 | 87 |
| 2024 | 32 |