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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 4 |
| 1954 | 10 |
| 1955 | 12 |
| 1956 | 5 |
| 1957 | 4 |
| 1958 | 5 |
| 1959 | 10 |
| 1960 | 8 |
| 1961 | 9 |
| 1962 | 11 |
| 1964 | 5 |
| 1965 | 17 |
| 1966 | 60 |
| 1967 | 65 |
| 1968 | 104 |
| 1969 | 97 |
| 1970 | 124 |
| 1971 | 144 |
| 1972 | 199 |
| 1973 | 229 |
| 1974 | 272 |
| 1975 | 244 |
| 1976 | 251 |
| 1977 | 204 |
| 1978 | 150 |
| 1979 | 161 |
| 1980 | 157 |
| 1981 | 170 |
| 1982 | 168 |
| 1983 | 143 |
| 1984 | 168 |
| 1985 | 174 |
| 1986 | 245 |
| 1987 | 235 |
| 1988 | 264 |
| 1989 | 254 |
| 1990 | 212 |
| 1991 | 258 |
| 1992 | 275 |
| 1993 | 257 |
| 1994 | 302 |
| 1995 | 196 |
| 1996 | 215 |
| 1997 | 244 |
| 1998 | 243 |
| 1999 | 223 |
| 2000 | 196 |
| 2001 | 192 |
| 2002 | 180 |
| 2003 | 199 |
| 2004 | 187 |
| 2005 | 224 |
| 2006 | 210 |
| 2007 | 229 |
| 2008 | 213 |
| 2009 | 209 |
| 2010 | 226 |
| 2011 | 237 |
| 2012 | 219 |
| 2013 | 204 |
| 2014 | 189 |
| 2015 | 198 |
| 2016 | 179 |
| 2017 | 173 |
| 2018 | 157 |
| 2019 | 151 |
| 2020 | 158 |
| 2021 | 142 |
| 2022 | 95 |
| 2023 | 73 |
| 2024 | 31 |