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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 3 |
| 1967 | 9 |
| 1968 | 16 |
| 1969 | 20 |
| 1970 | 25 |
| 1971 | 31 |
| 1972 | 32 |
| 1973 | 44 |
| 1974 | 47 |
| 1975 | 46 |
| 1976 | 31 |
| 1977 | 27 |
| 1978 | 24 |
| 1979 | 32 |
| 1980 | 32 |
| 1981 | 28 |
| 1982 | 26 |
| 1983 | 16 |
| 1984 | 35 |
| 1985 | 41 |
| 1986 | 34 |
| 1987 | 42 |
| 1988 | 26 |
| 1989 | 41 |
| 1990 | 34 |
| 1991 | 53 |
| 1992 | 73 |
| 1993 | 74 |
| 1994 | 63 |
| 1995 | 111 |
| 1996 | 122 |
| 1997 | 120 |
| 1998 | 144 |
| 1999 | 141 |
| 2000 | 140 |
| 2001 | 133 |
| 2002 | 107 |
| 2003 | 138 |
| 2004 | 105 |
| 2005 | 103 |
| 2006 | 111 |
| 2007 | 111 |
| 2008 | 123 |
| 2009 | 108 |
| 2010 | 109 |
| 2011 | 137 |
| 2012 | 123 |
| 2013 | 135 |
| 2014 | 143 |
| 2015 | 128 |
| 2016 | 128 |
| 2017 | 152 |
| 2018 | 151 |
| 2019 | 155 |
| 2020 | 137 |
| 2021 | 143 |
| 2022 | 144 |
| 2023 | 122 |
| 2024 | 31 |