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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 10 |
| 1950 | 29 |
| 1951 | 44 |
| 1952 | 28 |
| 1953 | 51 |
| 1954 | 64 |
| 1955 | 68 |
| 1956 | 91 |
| 1957 | 70 |
| 1958 | 99 |
| 1959 | 77 |
| 1960 | 67 |
| 1961 | 148 |
| 1962 | 219 |
| 1963 | 189 |
| 1964 | 227 |
| 1965 | 180 |
| 1966 | 152 |
| 1967 | 216 |
| 1968 | 247 |
| 1969 | 262 |
| 1970 | 244 |
| 1971 | 255 |
| 1972 | 214 |
| 1973 | 235 |
| 1974 | 270 |
| 1975 | 175 |
| 1976 | 139 |
| 1977 | 137 |
| 1978 | 119 |
| 1979 | 120 |
| 1980 | 131 |
| 1981 | 110 |
| 1982 | 93 |
| 1983 | 100 |
| 1984 | 92 |
| 1985 | 91 |
| 1986 | 118 |
| 1987 | 100 |
| 1988 | 101 |
| 1989 | 112 |
| 1990 | 128 |
| 1991 | 118 |
| 1992 | 112 |
| 1993 | 113 |
| 1994 | 117 |
| 1995 | 97 |
| 1996 | 91 |
| 1997 | 103 |
| 1998 | 108 |
| 1999 | 92 |
| 2000 | 112 |
| 2001 | 97 |
| 2002 | 95 |
| 2003 | 94 |
| 2004 | 87 |
| 2005 | 78 |
| 2006 | 97 |
| 2007 | 94 |
| 2008 | 102 |
| 2009 | 95 |
| 2010 | 79 |
| 2011 | 73 |
| 2012 | 76 |
| 2013 | 76 |
| 2014 | 76 |
| 2015 | 76 |
| 2016 | 75 |
| 2017 | 50 |
| 2018 | 69 |
| 2019 | 55 |
| 2020 | 44 |
| 2021 | 28 |
| 2022 | 58 |
| 2023 | 34 |
| 2024 | 39 |
| 2025 | 5 |