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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 6 |
| 1972 | 1 |
| 1974 | 9 |
| 1975 | 39 |
| 1976 | 36 |
| 1977 | 41 |
| 1978 | 33 |
| 1979 | 20 |
| 1980 | 40 |
| 1981 | 39 |
| 1982 | 51 |
| 1983 | 39 |
| 1984 | 47 |
| 1985 | 57 |
| 1986 | 48 |
| 1987 | 47 |
| 1988 | 41 |
| 1989 | 66 |
| 1990 | 64 |
| 1991 | 61 |
| 1992 | 57 |
| 1993 | 64 |
| 1994 | 69 |
| 1995 | 68 |
| 1996 | 72 |
| 1997 | 64 |
| 1998 | 75 |
| 1999 | 68 |
| 2000 | 111 |
| 2001 | 86 |
| 2002 | 99 |
| 2003 | 83 |
| 2004 | 90 |
| 2005 | 100 |
| 2006 | 100 |
| 2007 | 89 |
| 2008 | 116 |
| 2009 | 123 |
| 2010 | 130 |
| 2011 | 140 |
| 2012 | 148 |
| 2013 | 134 |
| 2014 | 151 |
| 2015 | 160 |
| 2016 | 103 |
| 2017 | 107 |
| 2018 | 72 |
| 2019 | 70 |
| 2020 | 79 |
| 2021 | 73 |
| 2022 | 69 |
| 2023 | 50 |
| 2024 | 28 |