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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1950 | 5 |
| 1951 | 1 |
| 1952 | 7 |
| 1953 | 5 |
| 1954 | 3 |
| 1955 | 2 |
| 1956 | 2 |
| 1957 | 2 |
| 1958 | 3 |
| 1959 | 4 |
| 1960 | 5 |
| 1961 | 4 |
| 1963 | 25 |
| 1964 | 69 |
| 1965 | 50 |
| 1966 | 77 |
| 1967 | 106 |
| 1968 | 122 |
| 1969 | 153 |
| 1970 | 218 |
| 1971 | 244 |
| 1972 | 241 |
| 1973 | 208 |
| 1974 | 241 |
| 1975 | 207 |
| 1976 | 147 |
| 1977 | 158 |
| 1978 | 180 |
| 1979 | 177 |
| 1980 | 199 |
| 1981 | 111 |
| 1982 | 137 |
| 1983 | 98 |
| 1984 | 92 |
| 1985 | 92 |
| 1986 | 77 |
| 1987 | 91 |
| 1988 | 118 |
| 1989 | 207 |
| 1990 | 195 |
| 1991 | 192 |
| 1992 | 211 |
| 1993 | 195 |
| 1994 | 181 |
| 1995 | 130 |
| 1996 | 159 |
| 1997 | 109 |
| 1998 | 115 |
| 1999 | 143 |
| 2000 | 143 |
| 2001 | 117 |
| 2002 | 91 |
| 2003 | 110 |
| 2004 | 94 |
| 2005 | 95 |
| 2006 | 120 |
| 2007 | 108 |
| 2008 | 80 |
| 2009 | 100 |
| 2010 | 92 |
| 2011 | 91 |
| 2012 | 117 |
| 2013 | 87 |
| 2014 | 88 |
| 2015 | 94 |
| 2016 | 133 |
| 2017 | 120 |
| 2018 | 111 |
| 2019 | 113 |
| 2020 | 102 |
| 2021 | 83 |
| 2022 | 204 |
| 2023 | 213 |
| 2024 | 167 |
| 2025 | 65 |