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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 13 |
| 1950 | 89 |
| 1951 | 114 |
| 1952 | 209 |
| 1953 | 205 |
| 1954 | 242 |
| 1955 | 318 |
| 1956 | 142 |
| 1957 | 154 |
| 1958 | 131 |
| 1959 | 148 |
| 1960 | 179 |
| 1961 | 185 |
| 1962 | 180 |
| 1963 | 172 |
| 1964 | 168 |
| 1965 | 191 |
| 1966 | 247 |
| 1967 | 215 |
| 1968 | 303 |
| 1969 | 257 |
| 1970 | 222 |
| 1971 | 178 |
| 1972 | 74 |
| 1973 | 92 |
| 1974 | 108 |
| 1975 | 159 |
| 1976 | 163 |
| 1977 | 143 |
| 1978 | 190 |
| 1979 | 133 |
| 1980 | 193 |
| 1981 | 162 |
| 1982 | 162 |
| 1983 | 122 |
| 1984 | 147 |
| 1985 | 131 |
| 1986 | 175 |
| 1987 | 153 |
| 1988 | 135 |
| 1989 | 113 |
| 1990 | 109 |
| 1991 | 118 |
| 1992 | 129 |
| 1993 | 106 |
| 1994 | 117 |
| 1995 | 94 |
| 1996 | 99 |
| 1997 | 100 |
| 1998 | 99 |
| 1999 | 90 |
| 2000 | 94 |
| 2001 | 98 |
| 2002 | 70 |
| 2003 | 66 |
| 2004 | 61 |
| 2005 | 64 |
| 2006 | 60 |
| 2007 | 73 |
| 2008 | 71 |
| 2009 | 53 |
| 2010 | 56 |
| 2011 | 60 |
| 2012 | 51 |
| 2013 | 64 |
| 2014 | 76 |
| 2015 | 79 |
| 2016 | 115 |
| 2017 | 112 |
| 2018 | 106 |
| 2019 | 66 |
| 2020 | 64 |
| 2025 | 0 |