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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 2 |
| 1953 | 1 |
| 1956 | 3 |
| 1957 | 1 |
| 1959 | 3 |
| 1960 | 4 |
| 1961 | 4 |
| 1962 | 6 |
| 1963 | 12 |
| 1964 | 17 |
| 1965 | 34 |
| 1966 | 31 |
| 1967 | 50 |
| 1968 | 66 |
| 1969 | 71 |
| 1970 | 61 |
| 1971 | 53 |
| 1972 | 97 |
| 1973 | 81 |
| 1974 | 85 |
| 1975 | 106 |
| 1976 | 69 |
| 1977 | 91 |
| 1978 | 139 |
| 1979 | 91 |
| 1980 | 84 |
| 1981 | 80 |
| 1982 | 139 |
| 1983 | 110 |
| 1984 | 233 |
| 1985 | 139 |
| 1986 | 158 |
| 1987 | 189 |
| 1988 | 156 |
| 1989 | 240 |
| 1990 | 235 |
| 1991 | 257 |
| 1992 | 310 |
| 1993 | 138 |
| 1994 | 192 |
| 1995 | 181 |
| 1996 | 232 |
| 1997 | 213 |
| 1998 | 221 |
| 1999 | 225 |
| 2000 | 220 |
| 2001 | 210 |
| 2002 | 216 |
| 2003 | 238 |
| 2004 | 226 |
| 2005 | 244 |
| 2006 | 245 |
| 2007 | 251 |
| 2008 | 231 |
| 2009 | 263 |
| 2010 | 286 |
| 2011 | 287 |
| 2012 | 322 |
| 2013 | 278 |
| 2014 | 304 |
| 2015 | 335 |
| 2016 | 300 |
| 2017 | 220 |
| 2018 | 249 |
| 2019 | 270 |
| 2020 | 223 |
| 2021 | 201 |
| 2022 | 93 |
| 2023 | 85 |
| 2024 | 28 |