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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1946 | 1 |
| 1948 | 1 |
| 1954 | 2 |
| 1955 | 5 |
| 1956 | 1 |
| 1957 | 4 |
| 1958 | 5 |
| 1959 | 4 |
| 1960 | 1 |
| 1962 | 7 |
| 1963 | 19 |
| 1964 | 9 |
| 1965 | 28 |
| 1966 | 51 |
| 1967 | 48 |
| 1968 | 61 |
| 1969 | 73 |
| 1970 | 114 |
| 1971 | 148 |
| 1972 | 144 |
| 1973 | 150 |
| 1974 | 157 |
| 1975 | 141 |
| 1976 | 128 |
| 1977 | 151 |
| 1978 | 144 |
| 1979 | 163 |
| 1980 | 168 |
| 1981 | 187 |
| 1982 | 170 |
| 1983 | 135 |
| 1984 | 147 |
| 1985 | 147 |
| 1986 | 138 |
| 1987 | 136 |
| 1988 | 116 |
| 1989 | 110 |
| 1990 | 127 |
| 1991 | 93 |
| 1992 | 94 |
| 1993 | 113 |
| 1994 | 99 |
| 1995 | 102 |
| 1996 | 102 |
| 1997 | 100 |
| 1998 | 91 |
| 1999 | 114 |
| 2000 | 117 |
| 2001 | 94 |
| 2002 | 97 |
| 2003 | 88 |
| 2004 | 108 |
| 2005 | 121 |
| 2006 | 135 |
| 2007 | 141 |
| 2008 | 133 |
| 2009 | 132 |
| 2010 | 141 |
| 2011 | 148 |
| 2012 | 157 |
| 2013 | 159 |
| 2014 | 130 |
| 2015 | 136 |
| 2016 | 139 |
| 2017 | 115 |
| 2018 | 106 |
| 2019 | 113 |
| 2020 | 125 |
| 2021 | 92 |
| 2022 | 49 |
| 2023 | 49 |
| 2024 | 21 |