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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 1 |
| 1974 | 2 |
| 1975 | 1 |
| 1978 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1987 | 2 |
| 1988 | 4 |
| 1989 | 10 |
| 1990 | 95 |
| 1991 | 129 |
| 1992 | 138 |
| 1993 | 80 |
| 1994 | 83 |
| 1995 | 87 |
| 1996 | 87 |
| 1997 | 96 |
| 1998 | 90 |
| 1999 | 103 |
| 2000 | 118 |
| 2001 | 116 |
| 2002 | 109 |
| 2003 | 121 |
| 2004 | 108 |
| 2005 | 95 |
| 2006 | 115 |
| 2007 | 130 |
| 2008 | 136 |
| 2009 | 121 |
| 2010 | 158 |
| 2011 | 177 |
| 2012 | 182 |
| 2013 | 180 |
| 2014 | 193 |
| 2015 | 128 |
| 2016 | 91 |
| 2017 | 64 |
| 2018 | 73 |
| 2019 | 46 |
| 2020 | 28 |
| 2021 | 16 |
| 2022 | 12 |
| 2023 | 12 |
| 2024 | 6 |