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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1952 | 1 |
| 1953 | 1 |
| 1954 | 1 |
| 1956 | 1 |
| 1957 | 4 |
| 1960 | 1 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 4 |
| 1965 | 33 |
| 1966 | 22 |
| 1967 | 18 |
| 1968 | 26 |
| 1969 | 27 |
| 1970 | 31 |
| 1971 | 35 |
| 1972 | 52 |
| 1973 | 62 |
| 1974 | 69 |
| 1975 | 61 |
| 1976 | 74 |
| 1977 | 58 |
| 1978 | 73 |
| 1979 | 68 |
| 1980 | 67 |
| 1981 | 66 |
| 1982 | 76 |
| 1983 | 88 |
| 1984 | 86 |
| 1985 | 95 |
| 1986 | 91 |
| 1987 | 96 |
| 1988 | 97 |
| 1989 | 99 |
| 1990 | 97 |
| 1991 | 140 |
| 1992 | 104 |
| 1993 | 90 |
| 1994 | 115 |
| 1995 | 87 |
| 1996 | 84 |
| 1997 | 113 |
| 1998 | 121 |
| 1999 | 128 |
| 2000 | 135 |
| 2001 | 138 |
| 2002 | 137 |
| 2003 | 146 |
| 2004 | 156 |
| 2005 | 128 |
| 2006 | 165 |
| 2007 | 186 |
| 2008 | 195 |
| 2009 | 172 |
| 2010 | 162 |
| 2011 | 175 |
| 2012 | 237 |
| 2013 | 210 |
| 2014 | 204 |
| 2015 | 235 |
| 2016 | 186 |
| 2017 | 176 |
| 2018 | 168 |
| 2019 | 166 |
| 2020 | 151 |
| 2021 | 112 |
| 2022 | 43 |
| 2023 | 38 |
| 2024 | 18 |