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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 1 |
| 1954 | 1 |
| 1956 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 7 |
| 1965 | 17 |
| 1966 | 33 |
| 1967 | 49 |
| 1968 | 50 |
| 1969 | 48 |
| 1970 | 53 |
| 1971 | 45 |
| 1972 | 66 |
| 1973 | 56 |
| 1974 | 79 |
| 1975 | 63 |
| 1976 | 28 |
| 1977 | 50 |
| 1978 | 68 |
| 1979 | 46 |
| 1980 | 82 |
| 1981 | 46 |
| 1982 | 50 |
| 1983 | 52 |
| 1984 | 63 |
| 1985 | 70 |
| 1986 | 93 |
| 1987 | 69 |
| 1988 | 65 |
| 1989 | 98 |
| 1990 | 91 |
| 1991 | 74 |
| 1992 | 72 |
| 1993 | 53 |
| 1994 | 67 |
| 1995 | 72 |
| 1996 | 80 |
| 1997 | 60 |
| 1998 | 80 |
| 1999 | 66 |
| 2000 | 65 |
| 2001 | 79 |
| 2002 | 82 |
| 2003 | 80 |
| 2004 | 96 |
| 2005 | 87 |
| 2006 | 81 |
| 2007 | 111 |
| 2008 | 149 |
| 2009 | 133 |
| 2010 | 139 |
| 2011 | 172 |
| 2012 | 179 |
| 2013 | 147 |
| 2014 | 129 |
| 2015 | 126 |
| 2016 | 125 |
| 2017 | 126 |
| 2018 | 122 |
| 2019 | 143 |
| 2020 | 147 |
| 2021 | 153 |
| 2022 | 147 |
| 2023 | 133 |
| 2024 | 43 |