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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1965 | 19 |
| 1966 | 28 |
| 1967 | 42 |
| 1968 | 34 |
| 1969 | 43 |
| 1970 | 31 |
| 1971 | 50 |
| 1972 | 58 |
| 1973 | 74 |
| 1974 | 74 |
| 1975 | 86 |
| 1976 | 51 |
| 1977 | 76 |
| 1978 | 58 |
| 1979 | 54 |
| 1980 | 44 |
| 1981 | 49 |
| 1982 | 42 |
| 1983 | 47 |
| 1984 | 52 |
| 1985 | 47 |
| 1986 | 60 |
| 1987 | 53 |
| 1988 | 58 |
| 1989 | 87 |
| 1990 | 107 |
| 1991 | 82 |
| 1992 | 106 |
| 1993 | 104 |
| 1994 | 88 |
| 1995 | 107 |
| 1996 | 106 |
| 1997 | 101 |
| 1998 | 112 |
| 1999 | 128 |
| 2000 | 137 |
| 2001 | 172 |
| 2002 | 125 |
| 2003 | 166 |
| 2004 | 107 |
| 2005 | 139 |
| 2006 | 128 |
| 2007 | 119 |
| 2008 | 117 |
| 2009 | 141 |
| 2010 | 115 |
| 2011 | 113 |
| 2012 | 109 |
| 2013 | 133 |
| 2014 | 134 |
| 2015 | 144 |
| 2016 | 141 |
| 2017 | 127 |
| 2018 | 122 |
| 2019 | 136 |
| 2020 | 135 |
| 2021 | 145 |
| 2022 | 304 |
| 2023 | 291 |
| 2024 | 131 |