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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1953 | 3 |
| 1956 | 1 |
| 1958 | 1 |
| 1959 | 1 |
| 1960 | 2 |
| 1962 | 2 |
| 1963 | 1 |
| 1965 | 3 |
| 1966 | 10 |
| 1967 | 18 |
| 1968 | 19 |
| 1969 | 21 |
| 1970 | 17 |
| 1971 | 27 |
| 1972 | 27 |
| 1973 | 48 |
| 1974 | 40 |
| 1975 | 45 |
| 1976 | 33 |
| 1977 | 36 |
| 1978 | 27 |
| 1979 | 40 |
| 1980 | 41 |
| 1981 | 45 |
| 1982 | 49 |
| 1983 | 43 |
| 1984 | 41 |
| 1985 | 54 |
| 1986 | 68 |
| 1987 | 75 |
| 1988 | 70 |
| 1989 | 89 |
| 1990 | 91 |
| 1991 | 120 |
| 1992 | 99 |
| 1993 | 117 |
| 1994 | 113 |
| 1995 | 109 |
| 1996 | 119 |
| 1997 | 134 |
| 1998 | 156 |
| 1999 | 179 |
| 2000 | 161 |
| 2001 | 166 |
| 2002 | 170 |
| 2003 | 175 |
| 2004 | 230 |
| 2005 | 269 |
| 2006 | 267 |
| 2007 | 270 |
| 2008 | 325 |
| 2009 | 318 |
| 2010 | 402 |
| 2011 | 408 |
| 2012 | 501 |
| 2013 | 471 |
| 2014 | 471 |
| 2015 | 561 |
| 2016 | 532 |
| 2017 | 606 |
| 2018 | 555 |
| 2019 | 597 |
| 2020 | 632 |
| 2021 | 605 |
| 2022 | 626 |
| 2023 | 542 |
| 2024 | 261 |