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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 2 |
| 1954 | 1 |
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 4 |
| 1959 | 2 |
| 1960 | 6 |
| 1961 | 5 |
| 1962 | 3 |
| 1965 | 10 |
| 1966 | 30 |
| 1967 | 32 |
| 1968 | 48 |
| 1969 | 45 |
| 1970 | 68 |
| 1971 | 81 |
| 1972 | 103 |
| 1973 | 111 |
| 1974 | 130 |
| 1975 | 111 |
| 1976 | 107 |
| 1977 | 104 |
| 1978 | 106 |
| 1979 | 132 |
| 1980 | 107 |
| 1981 | 152 |
| 1982 | 163 |
| 1983 | 185 |
| 1984 | 181 |
| 1985 | 189 |
| 1986 | 174 |
| 1987 | 223 |
| 1988 | 161 |
| 1989 | 203 |
| 1990 | 196 |
| 1991 | 204 |
| 1992 | 193 |
| 1993 | 193 |
| 1994 | 185 |
| 1995 | 208 |
| 1996 | 179 |
| 1997 | 181 |
| 1998 | 169 |
| 1999 | 195 |
| 2000 | 229 |
| 2001 | 199 |
| 2002 | 234 |
| 2003 | 275 |
| 2004 | 292 |
| 2005 | 325 |
| 2006 | 314 |
| 2007 | 372 |
| 2008 | 432 |
| 2009 | 439 |
| 2010 | 495 |
| 2011 | 498 |
| 2012 | 539 |
| 2013 | 514 |
| 2014 | 587 |
| 2015 | 569 |
| 2016 | 530 |
| 2017 | 598 |
| 2018 | 559 |
| 2019 | 555 |
| 2020 | 412 |
| 2021 | 333 |
| 2022 | 254 |
| 2023 | 191 |
| 2024 | 97 |