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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 25 |
| 1969 | 31 |
| 1970 | 60 |
| 1971 | 100 |
| 1972 | 80 |
| 1973 | 63 |
| 1974 | 69 |
| 1975 | 54 |
| 1976 | 50 |
| 1977 | 88 |
| 1978 | 77 |
| 1979 | 65 |
| 1980 | 61 |
| 1981 | 84 |
| 1982 | 65 |
| 1983 | 85 |
| 1984 | 72 |
| 1985 | 75 |
| 1986 | 108 |
| 1987 | 111 |
| 1988 | 86 |
| 1989 | 104 |
| 1990 | 95 |
| 1991 | 94 |
| 1992 | 84 |
| 1993 | 111 |
| 1994 | 103 |
| 1995 | 84 |
| 1996 | 123 |
| 1997 | 129 |
| 1998 | 109 |
| 1999 | 109 |
| 2000 | 121 |
| 2001 | 133 |
| 2002 | 108 |
| 2003 | 135 |
| 2004 | 139 |
| 2005 | 134 |
| 2006 | 138 |
| 2007 | 150 |
| 2008 | 175 |
| 2009 | 143 |
| 2010 | 144 |
| 2011 | 153 |
| 2012 | 174 |
| 2013 | 155 |
| 2014 | 151 |
| 2015 | 111 |
| 2016 | 115 |
| 2017 | 117 |
| 2018 | 120 |
| 2019 | 63 |
| 2020 | 100 |
| 2021 | 91 |
| 2022 | 83 |
| 2023 | 57 |
| 2024 | 15 |