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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 3 |
| 1952 | 8 |
| 1953 | 12 |
| 1954 | 12 |
| 1955 | 12 |
| 1956 | 11 |
| 1957 | 12 |
| 1958 | 18 |
| 1959 | 18 |
| 1960 | 16 |
| 1961 | 15 |
| 1962 | 8 |
| 1964 | 1 |
| 1965 | 9 |
| 1966 | 25 |
| 1967 | 27 |
| 1968 | 34 |
| 1969 | 24 |
| 1970 | 21 |
| 1971 | 21 |
| 1972 | 27 |
| 1973 | 31 |
| 1974 | 25 |
| 1975 | 27 |
| 1976 | 29 |
| 1977 | 33 |
| 1978 | 37 |
| 1979 | 41 |
| 1980 | 44 |
| 1981 | 44 |
| 1982 | 44 |
| 1983 | 58 |
| 1984 | 49 |
| 1985 | 36 |
| 1986 | 55 |
| 1987 | 64 |
| 1988 | 38 |
| 1989 | 47 |
| 1990 | 49 |
| 1991 | 51 |
| 1992 | 47 |
| 1993 | 29 |
| 1994 | 41 |
| 1995 | 48 |
| 1996 | 56 |
| 1997 | 65 |
| 1998 | 84 |
| 1999 | 93 |
| 2000 | 92 |
| 2001 | 89 |
| 2002 | 95 |
| 2003 | 120 |
| 2004 | 109 |
| 2005 | 141 |
| 2006 | 137 |
| 2007 | 144 |
| 2008 | 154 |
| 2009 | 173 |
| 2010 | 177 |
| 2011 | 201 |
| 2012 | 223 |
| 2013 | 267 |
| 2014 | 240 |
| 2015 | 288 |
| 2016 | 265 |
| 2017 | 305 |
| 2018 | 259 |
| 2019 | 333 |
| 2020 | 269 |
| 2021 | 221 |
| 2022 | 194 |
| 2023 | 146 |
| 2024 | 112 |