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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1973 | 1 |
| 1975 | 6 |
| 1976 | 15 |
| 1977 | 19 |
| 1978 | 15 |
| 1979 | 43 |
| 1980 | 46 |
| 1981 | 53 |
| 1982 | 66 |
| 1983 | 59 |
| 1984 | 57 |
| 1985 | 70 |
| 1986 | 57 |
| 1987 | 64 |
| 1988 | 57 |
| 1989 | 51 |
| 1990 | 64 |
| 1991 | 64 |
| 1992 | 87 |
| 1993 | 73 |
| 1994 | 82 |
| 1995 | 79 |
| 1996 | 89 |
| 1997 | 77 |
| 1998 | 69 |
| 1999 | 91 |
| 2000 | 100 |
| 2001 | 116 |
| 2002 | 106 |
| 2003 | 122 |
| 2004 | 114 |
| 2005 | 145 |
| 2006 | 128 |
| 2007 | 163 |
| 2008 | 139 |
| 2009 | 168 |
| 2010 | 161 |
| 2011 | 158 |
| 2012 | 150 |
| 2013 | 166 |
| 2014 | 157 |
| 2015 | 127 |
| 2016 | 132 |
| 2017 | 146 |
| 2018 | 137 |
| 2019 | 124 |
| 2020 | 141 |
| 2021 | 163 |
| 2022 | 148 |
| 2023 | 118 |
| 2024 | 105 |