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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 1 |
| 1951 | 1 |
| 1953 | 3 |
| 1954 | 10 |
| 1955 | 12 |
| 1956 | 14 |
| 1957 | 7 |
| 1958 | 4 |
| 1959 | 10 |
| 1962 | 2 |
| 1964 | 2 |
| 1965 | 4 |
| 1966 | 54 |
| 1967 | 87 |
| 1968 | 108 |
| 1969 | 114 |
| 1970 | 140 |
| 1971 | 188 |
| 1972 | 167 |
| 1973 | 165 |
| 1974 | 214 |
| 1975 | 163 |
| 1976 | 132 |
| 1977 | 93 |
| 1978 | 92 |
| 1979 | 86 |
| 1980 | 91 |
| 1981 | 77 |
| 1982 | 69 |
| 1983 | 98 |
| 1984 | 119 |
| 1985 | 94 |
| 1986 | 107 |
| 1987 | 104 |
| 1988 | 114 |
| 1989 | 91 |
| 1990 | 128 |
| 1991 | 109 |
| 1992 | 84 |
| 1993 | 79 |
| 1994 | 90 |
| 1995 | 78 |
| 1996 | 60 |
| 1997 | 75 |
| 1998 | 72 |
| 1999 | 62 |
| 2000 | 77 |
| 2001 | 137 |
| 2002 | 125 |
| 2003 | 105 |
| 2004 | 150 |
| 2005 | 176 |
| 2006 | 167 |
| 2007 | 163 |
| 2008 | 180 |
| 2009 | 183 |
| 2010 | 204 |
| 2011 | 203 |
| 2012 | 225 |
| 2013 | 252 |
| 2014 | 287 |
| 2015 | 289 |
| 2016 | 297 |
| 2017 | 260 |
| 2018 | 272 |
| 2019 | 310 |
| 2020 | 224 |
| 2021 | 117 |
| 2022 | 81 |
| 2023 | 63 |
| 2024 | 151 |
| 2025 | 8 |