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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1954 | 1 |
| 1956 | 2 |
| 1958 | 1 |
| 1959 | 1 |
| 1965 | 2 |
| 1966 | 11 |
| 1967 | 9 |
| 1968 | 9 |
| 1969 | 14 |
| 1970 | 14 |
| 1971 | 17 |
| 1972 | 24 |
| 1973 | 20 |
| 1974 | 48 |
| 1975 | 31 |
| 1976 | 27 |
| 1977 | 44 |
| 1978 | 38 |
| 1979 | 49 |
| 1980 | 41 |
| 1981 | 47 |
| 1982 | 48 |
| 1983 | 37 |
| 1984 | 37 |
| 1985 | 38 |
| 1986 | 55 |
| 1987 | 70 |
| 1988 | 76 |
| 1989 | 65 |
| 1990 | 47 |
| 1991 | 39 |
| 1992 | 62 |
| 1993 | 72 |
| 1994 | 87 |
| 1995 | 93 |
| 1996 | 84 |
| 1997 | 82 |
| 1998 | 89 |
| 1999 | 89 |
| 2000 | 100 |
| 2001 | 132 |
| 2002 | 129 |
| 2003 | 112 |
| 2004 | 112 |
| 2005 | 94 |
| 2006 | 116 |
| 2007 | 124 |
| 2008 | 157 |
| 2009 | 139 |
| 2010 | 154 |
| 2011 | 162 |
| 2012 | 159 |
| 2013 | 155 |
| 2014 | 180 |
| 2015 | 197 |
| 2016 | 155 |
| 2017 | 181 |
| 2018 | 164 |
| 2019 | 155 |
| 2020 | 127 |
| 2021 | 106 |
| 2022 | 15 |
| 2024 | 0 |