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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 2 |
| 1952 | 8 |
| 1953 | 10 |
| 1954 | 9 |
| 1955 | 15 |
| 1956 | 22 |
| 1957 | 8 |
| 1958 | 10 |
| 1959 | 15 |
| 1964 | 2 |
| 1965 | 31 |
| 1966 | 42 |
| 1967 | 31 |
| 1968 | 33 |
| 1969 | 39 |
| 1970 | 42 |
| 1971 | 50 |
| 1972 | 58 |
| 1973 | 55 |
| 1974 | 67 |
| 1975 | 50 |
| 1976 | 51 |
| 1977 | 40 |
| 1978 | 50 |
| 1979 | 52 |
| 1980 | 47 |
| 1981 | 66 |
| 1982 | 106 |
| 1983 | 110 |
| 1984 | 139 |
| 1985 | 168 |
| 1986 | 204 |
| 1987 | 178 |
| 1988 | 180 |
| 1989 | 166 |
| 1990 | 88 |
| 1991 | 74 |
| 1992 | 43 |
| 1993 | 60 |
| 1994 | 48 |
| 1995 | 50 |
| 1996 | 77 |
| 1997 | 58 |
| 1998 | 59 |
| 1999 | 71 |
| 2000 | 66 |
| 2001 | 58 |
| 2002 | 54 |
| 2003 | 55 |
| 2004 | 82 |
| 2005 | 76 |
| 2006 | 100 |
| 2007 | 93 |
| 2008 | 126 |
| 2009 | 122 |
| 2010 | 141 |
| 2011 | 120 |
| 2012 | 129 |
| 2013 | 135 |
| 2014 | 134 |
| 2015 | 108 |
| 2016 | 108 |
| 2017 | 93 |
| 2018 | 84 |
| 2019 | 74 |
| 2020 | 111 |
| 2021 | 82 |
| 2022 | 57 |
| 2023 | 43 |
| 2024 | 7 |