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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1978 | 1 |
| 1980 | 1 |
| 1981 | 14 |
| 1982 | 43 |
| 1983 | 47 |
| 1984 | 56 |
| 1985 | 41 |
| 1986 | 75 |
| 1987 | 46 |
| 1988 | 40 |
| 1989 | 61 |
| 1990 | 83 |
| 1991 | 85 |
| 1992 | 104 |
| 1993 | 107 |
| 1994 | 128 |
| 1995 | 124 |
| 1996 | 157 |
| 1997 | 105 |
| 1998 | 119 |
| 1999 | 122 |
| 2000 | 133 |
| 2001 | 112 |
| 2002 | 108 |
| 2003 | 149 |
| 2004 | 135 |
| 2005 | 139 |
| 2006 | 140 |
| 2007 | 133 |
| 2008 | 116 |
| 2009 | 132 |
| 2010 | 125 |
| 2011 | 124 |
| 2012 | 134 |
| 2013 | 119 |
| 2014 | 119 |
| 2015 | 109 |
| 2016 | 123 |
| 2017 | 123 |
| 2018 | 104 |
| 2019 | 100 |
| 2020 | 92 |
| 2021 | 67 |
| 2022 | 51 |
| 2023 | 10 |