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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1945 | 1 |
| 1947 | 1 |
| 1948 | 1 |
| 1949 | 3 |
| 1952 | 3 |
| 1953 | 12 |
| 1954 | 7 |
| 1955 | 13 |
| 1956 | 7 |
| 1957 | 6 |
| 1958 | 7 |
| 1959 | 10 |
| 1960 | 7 |
| 1961 | 4 |
| 1962 | 1 |
| 1965 | 5 |
| 1966 | 15 |
| 1967 | 12 |
| 1968 | 12 |
| 1969 | 24 |
| 1970 | 22 |
| 1971 | 25 |
| 1972 | 13 |
| 1973 | 29 |
| 1974 | 28 |
| 1975 | 17 |
| 1976 | 22 |
| 1977 | 21 |
| 1978 | 21 |
| 1979 | 28 |
| 1980 | 48 |
| 1981 | 57 |
| 1982 | 71 |
| 1983 | 42 |
| 1984 | 80 |
| 1985 | 100 |
| 1986 | 72 |
| 1987 | 65 |
| 1988 | 89 |
| 1989 | 69 |
| 1990 | 80 |
| 1991 | 101 |
| 1992 | 94 |
| 1993 | 104 |
| 1994 | 117 |
| 1995 | 133 |
| 1996 | 133 |
| 1997 | 116 |
| 1998 | 118 |
| 1999 | 105 |
| 2000 | 120 |
| 2001 | 129 |
| 2002 | 125 |
| 2003 | 147 |
| 2004 | 120 |
| 2005 | 171 |
| 2006 | 170 |
| 2007 | 148 |
| 2008 | 181 |
| 2009 | 148 |
| 2010 | 171 |
| 2011 | 179 |
| 2012 | 176 |
| 2013 | 138 |
| 2014 | 132 |
| 2015 | 146 |
| 2016 | 150 |
| 2017 | 126 |
| 2018 | 132 |
| 2019 | 156 |
| 2020 | 143 |
| 2021 | 123 |
| 2022 | 85 |
| 2023 | 5 |