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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1952 | 9 |
| 1953 | 11 |
| 1954 | 12 |
| 1955 | 6 |
| 1956 | 6 |
| 1957 | 8 |
| 1958 | 2 |
| 1959 | 4 |
| 1960 | 2 |
| 1961 | 3 |
| 1962 | 4 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 9 |
| 1966 | 26 |
| 1967 | 19 |
| 1968 | 17 |
| 1969 | 32 |
| 1970 | 25 |
| 1971 | 21 |
| 1972 | 21 |
| 1973 | 29 |
| 1974 | 42 |
| 1975 | 22 |
| 1976 | 32 |
| 1977 | 30 |
| 1978 | 22 |
| 1979 | 42 |
| 1980 | 35 |
| 1981 | 32 |
| 1982 | 33 |
| 1983 | 31 |
| 1984 | 26 |
| 1985 | 48 |
| 1986 | 44 |
| 1987 | 51 |
| 1988 | 64 |
| 1989 | 70 |
| 1990 | 104 |
| 1991 | 104 |
| 1992 | 83 |
| 1993 | 81 |
| 1994 | 84 |
| 1995 | 109 |
| 1996 | 90 |
| 1997 | 113 |
| 1998 | 95 |
| 1999 | 117 |
| 2000 | 112 |
| 2001 | 121 |
| 2002 | 121 |
| 2003 | 147 |
| 2004 | 148 |
| 2005 | 179 |
| 2006 | 203 |
| 2007 | 199 |
| 2008 | 203 |
| 2009 | 254 |
| 2010 | 247 |
| 2011 | 279 |
| 2012 | 242 |
| 2013 | 288 |
| 2014 | 293 |
| 2015 | 262 |
| 2016 | 267 |
| 2017 | 255 |
| 2018 | 268 |
| 2019 | 241 |
| 2020 | 257 |
| 2021 | 187 |
| 2022 | 189 |
| 2023 | 151 |
| 2024 | 62 |