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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 7 |
| 1967 | 21 |
| 1968 | 56 |
| 1969 | 75 |
| 1970 | 63 |
| 1971 | 100 |
| 1972 | 75 |
| 1973 | 111 |
| 1974 | 97 |
| 1975 | 107 |
| 1976 | 85 |
| 1977 | 125 |
| 1978 | 119 |
| 1979 | 134 |
| 1980 | 112 |
| 1981 | 124 |
| 1982 | 131 |
| 1983 | 149 |
| 1984 | 156 |
| 1985 | 194 |
| 1986 | 159 |
| 1987 | 169 |
| 1988 | 184 |
| 1989 | 185 |
| 1990 | 210 |
| 1991 | 173 |
| 1992 | 138 |
| 1993 | 130 |
| 1994 | 123 |
| 1995 | 118 |
| 1996 | 94 |
| 1997 | 73 |
| 1998 | 105 |
| 1999 | 96 |
| 2000 | 92 |
| 2001 | 82 |
| 2002 | 74 |
| 2003 | 74 |
| 2004 | 87 |
| 2005 | 108 |
| 2006 | 87 |
| 2007 | 108 |
| 2008 | 102 |
| 2009 | 137 |
| 2010 | 141 |
| 2011 | 136 |
| 2012 | 151 |
| 2013 | 166 |
| 2014 | 147 |
| 2015 | 185 |
| 2016 | 132 |
| 2017 | 127 |
| 2018 | 131 |
| 2019 | 128 |
| 2020 | 120 |
| 2021 | 137 |
| 2022 | 19 |
| 2023 | 6 |
| 2024 | 71 |