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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 1 |
| 1956 | 1 |
| 1958 | 3 |
| 1959 | 4 |
| 1960 | 6 |
| 1961 | 8 |
| 1962 | 13 |
| 1963 | 10 |
| 1964 | 11 |
| 1965 | 4 |
| 1966 | 16 |
| 1967 | 67 |
| 1968 | 166 |
| 1969 | 93 |
| 1970 | 77 |
| 1971 | 112 |
| 1972 | 131 |
| 1973 | 154 |
| 1974 | 196 |
| 1975 | 197 |
| 1976 | 150 |
| 1977 | 126 |
| 1978 | 132 |
| 1979 | 155 |
| 1980 | 122 |
| 1981 | 111 |
| 1982 | 135 |
| 1983 | 99 |
| 1984 | 129 |
| 1985 | 148 |
| 1986 | 120 |
| 1987 | 94 |
| 1988 | 118 |
| 1989 | 110 |
| 1990 | 130 |
| 1991 | 126 |
| 1992 | 148 |
| 1993 | 131 |
| 1994 | 138 |
| 1995 | 75 |
| 1996 | 89 |
| 1997 | 101 |
| 1998 | 96 |
| 1999 | 124 |
| 2000 | 110 |
| 2001 | 101 |
| 2002 | 157 |
| 2003 | 132 |
| 2004 | 137 |
| 2005 | 188 |
| 2006 | 213 |
| 2007 | 223 |
| 2008 | 288 |
| 2009 | 302 |
| 2010 | 258 |
| 2011 | 234 |
| 2012 | 248 |
| 2013 | 213 |
| 2014 | 194 |
| 2015 | 169 |
| 2016 | 142 |
| 2017 | 118 |
| 2018 | 131 |
| 2019 | 117 |
| 2020 | 125 |
| 2021 | 82 |
| 2022 | 72 |
| 2023 | 64 |
| 2024 | 25 |