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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1951 | 2 |
| 1954 | 2 |
| 1955 | 2 |
| 1957 | 2 |
| 1958 | 1 |
| 1959 | 3 |
| 1960 | 9 |
| 1961 | 7 |
| 1962 | 12 |
| 1963 | 75 |
| 1964 | 170 |
| 1965 | 118 |
| 1966 | 98 |
| 1967 | 149 |
| 1968 | 181 |
| 1969 | 192 |
| 1970 | 247 |
| 1971 | 269 |
| 1972 | 283 |
| 1973 | 287 |
| 1974 | 323 |
| 1975 | 177 |
| 1976 | 121 |
| 1977 | 103 |
| 1978 | 86 |
| 1979 | 76 |
| 1980 | 76 |
| 1981 | 71 |
| 1982 | 75 |
| 1983 | 72 |
| 1984 | 62 |
| 1985 | 49 |
| 1986 | 52 |
| 1987 | 52 |
| 1988 | 56 |
| 1989 | 51 |
| 1990 | 56 |
| 1991 | 50 |
| 1992 | 74 |
| 1993 | 69 |
| 1994 | 72 |
| 1995 | 74 |
| 1996 | 83 |
| 1997 | 66 |
| 1998 | 77 |
| 1999 | 97 |
| 2000 | 96 |
| 2001 | 105 |
| 2002 | 87 |
| 2003 | 97 |
| 2004 | 119 |
| 2005 | 137 |
| 2006 | 126 |
| 2007 | 134 |
| 2008 | 143 |
| 2009 | 151 |
| 2010 | 149 |
| 2011 | 144 |
| 2012 | 160 |
| 2013 | 150 |
| 2014 | 180 |
| 2015 | 200 |
| 2016 | 197 |
| 2017 | 174 |
| 2018 | 149 |
| 2019 | 162 |
| 2020 | 151 |
| 2021 | 126 |
| 2022 | 90 |
| 2023 | 68 |
| 2024 | 22 |