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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 30 |
| 1966 | 80 |
| 1967 | 82 |
| 1968 | 119 |
| 1969 | 124 |
| 1970 | 170 |
| 1971 | 109 |
| 1972 | 121 |
| 1973 | 115 |
| 1974 | 83 |
| 1975 | 59 |
| 1976 | 54 |
| 1977 | 48 |
| 1978 | 47 |
| 1979 | 46 |
| 1980 | 41 |
| 1981 | 42 |
| 1982 | 54 |
| 1983 | 43 |
| 1984 | 35 |
| 1985 | 44 |
| 1986 | 49 |
| 1987 | 47 |
| 1988 | 78 |
| 1989 | 91 |
| 1990 | 78 |
| 1991 | 74 |
| 1992 | 58 |
| 1993 | 75 |
| 1994 | 109 |
| 1995 | 104 |
| 1996 | 115 |
| 1997 | 85 |
| 1998 | 82 |
| 1999 | 109 |
| 2000 | 136 |
| 2001 | 106 |
| 2002 | 127 |
| 2003 | 142 |
| 2004 | 111 |
| 2005 | 143 |
| 2006 | 150 |
| 2007 | 189 |
| 2008 | 180 |
| 2009 | 186 |
| 2010 | 173 |
| 2011 | 183 |
| 2012 | 195 |
| 2013 | 182 |
| 2014 | 154 |
| 2015 | 157 |
| 2016 | 164 |
| 2017 | 156 |
| 2018 | 169 |
| 2019 | 156 |
| 2020 | 129 |
| 2021 | 101 |
| 2022 | 74 |
| 2023 | 77 |
| 2024 | 30 |