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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1975 | 5 |
| 1976 | 20 |
| 1977 | 29 |
| 1978 | 40 |
| 1979 | 31 |
| 1980 | 36 |
| 1981 | 41 |
| 1982 | 43 |
| 1983 | 43 |
| 1984 | 66 |
| 1985 | 84 |
| 1986 | 81 |
| 1987 | 74 |
| 1988 | 103 |
| 1989 | 131 |
| 1990 | 137 |
| 1991 | 149 |
| 1992 | 174 |
| 1993 | 173 |
| 1994 | 118 |
| 1995 | 144 |
| 1996 | 137 |
| 1997 | 111 |
| 1998 | 141 |
| 1999 | 143 |
| 2000 | 140 |
| 2001 | 129 |
| 2002 | 117 |
| 2003 | 138 |
| 2004 | 155 |
| 2005 | 134 |
| 2006 | 151 |
| 2007 | 157 |
| 2008 | 147 |
| 2009 | 143 |
| 2010 | 123 |
| 2011 | 147 |
| 2012 | 148 |
| 2013 | 132 |
| 2014 | 155 |
| 2015 | 143 |
| 2016 | 117 |
| 2017 | 115 |
| 2018 | 118 |
| 2019 | 90 |
| 2020 | 77 |
| 2021 | 54 |
| 2022 | 47 |
| 2023 | 54 |
| 2024 | 48 |