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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 4 |
| 1948 | 9 |
| 1949 | 1 |
| 1950 | 14 |
| 1951 | 24 |
| 1952 | 44 |
| 1953 | 48 |
| 1954 | 70 |
| 1955 | 42 |
| 1956 | 47 |
| 1957 | 31 |
| 1958 | 31 |
| 1959 | 31 |
| 1960 | 23 |
| 1961 | 37 |
| 1962 | 44 |
| 1963 | 64 |
| 1964 | 88 |
| 1965 | 91 |
| 1966 | 87 |
| 1967 | 60 |
| 1968 | 103 |
| 1969 | 110 |
| 1970 | 86 |
| 1971 | 106 |
| 1972 | 97 |
| 1973 | 116 |
| 1974 | 110 |
| 1975 | 110 |
| 1976 | 100 |
| 1977 | 93 |
| 1978 | 104 |
| 1979 | 107 |
| 1980 | 93 |
| 1981 | 123 |
| 1982 | 122 |
| 1983 | 120 |
| 1984 | 135 |
| 1985 | 144 |
| 1986 | 117 |
| 1987 | 102 |
| 1988 | 110 |
| 1989 | 95 |
| 1990 | 95 |
| 1991 | 53 |
| 1992 | 57 |
| 1993 | 59 |
| 1994 | 71 |
| 1995 | 53 |
| 1996 | 71 |
| 1997 | 61 |
| 1998 | 83 |
| 1999 | 85 |
| 2000 | 83 |
| 2001 | 81 |
| 2002 | 85 |
| 2003 | 90 |
| 2004 | 108 |
| 2005 | 100 |
| 2006 | 131 |
| 2007 | 143 |
| 2008 | 155 |
| 2009 | 142 |
| 2010 | 183 |
| 2011 | 210 |
| 2012 | 258 |
| 2013 | 251 |
| 2014 | 215 |
| 2015 | 259 |
| 2016 | 236 |
| 2017 | 250 |
| 2018 | 228 |
| 2019 | 200 |
| 2020 | 187 |
| 2021 | 154 |
| 2022 | 147 |
| 2023 | 144 |
| 2024 | 180 |
| 2025 | 5 |