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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 4 |
| 1953 | 2 |
| 1954 | 4 |
| 1955 | 4 |
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 3 |
| 1960 | 1 |
| 1965 | 11 |
| 1966 | 26 |
| 1967 | 34 |
| 1968 | 37 |
| 1969 | 32 |
| 1970 | 47 |
| 1971 | 38 |
| 1972 | 46 |
| 1973 | 55 |
| 1974 | 66 |
| 1975 | 82 |
| 1976 | 90 |
| 1977 | 128 |
| 1978 | 117 |
| 1979 | 111 |
| 1980 | 126 |
| 1981 | 150 |
| 1982 | 169 |
| 1983 | 163 |
| 1984 | 157 |
| 1985 | 175 |
| 1986 | 175 |
| 1987 | 196 |
| 1988 | 167 |
| 1989 | 184 |
| 1990 | 152 |
| 1991 | 179 |
| 1992 | 150 |
| 1993 | 132 |
| 1994 | 144 |
| 1995 | 130 |
| 1996 | 139 |
| 1997 | 121 |
| 1998 | 150 |
| 1999 | 156 |
| 2000 | 174 |
| 2001 | 164 |
| 2002 | 165 |
| 2003 | 175 |
| 2004 | 178 |
| 2005 | 170 |
| 2006 | 171 |
| 2007 | 179 |
| 2008 | 203 |
| 2009 | 181 |
| 2010 | 158 |
| 2011 | 187 |
| 2012 | 183 |
| 2013 | 191 |
| 2014 | 200 |
| 2015 | 191 |
| 2016 | 158 |
| 2017 | 166 |
| 2018 | 147 |
| 2019 | 144 |
| 2020 | 161 |
| 2021 | 157 |
| 2022 | 105 |
| 2023 | 72 |
| 2024 | 23 |