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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1954 | 1 |
| 1955 | 4 |
| 1956 | 2 |
| 1957 | 1 |
| 1958 | 1 |
| 1966 | 2 |
| 1967 | 6 |
| 1968 | 2 |
| 1969 | 3 |
| 1970 | 7 |
| 1971 | 15 |
| 1972 | 44 |
| 1973 | 53 |
| 1974 | 50 |
| 1975 | 53 |
| 1976 | 58 |
| 1977 | 63 |
| 1978 | 91 |
| 1979 | 69 |
| 1980 | 86 |
| 1981 | 93 |
| 1982 | 80 |
| 1983 | 119 |
| 1984 | 120 |
| 1985 | 126 |
| 1986 | 122 |
| 1987 | 126 |
| 1988 | 126 |
| 1989 | 155 |
| 1990 | 167 |
| 1991 | 180 |
| 1992 | 131 |
| 1993 | 183 |
| 1994 | 186 |
| 1995 | 150 |
| 1996 | 156 |
| 1997 | 171 |
| 1998 | 141 |
| 1999 | 149 |
| 2000 | 190 |
| 2001 | 159 |
| 2002 | 170 |
| 2003 | 168 |
| 2004 | 175 |
| 2005 | 168 |
| 2006 | 186 |
| 2007 | 173 |
| 2008 | 173 |
| 2009 | 193 |
| 2010 | 163 |
| 2011 | 213 |
| 2012 | 243 |
| 2013 | 235 |
| 2014 | 219 |
| 2015 | 207 |
| 2016 | 173 |
| 2017 | 225 |
| 2018 | 230 |
| 2019 | 218 |
| 2020 | 206 |
| 2021 | 180 |
| 2022 | 170 |
| 2023 | 82 |
| 2024 | 40 |