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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 1 |
| 1977 | 1 |
| 1986 | 1 |
| 1987 | 29 |
| 1988 | 79 |
| 1989 | 97 |
| 1990 | 108 |
| 1991 | 88 |
| 1992 | 96 |
| 1993 | 108 |
| 1994 | 106 |
| 1995 | 97 |
| 1996 | 115 |
| 1997 | 83 |
| 1998 | 102 |
| 1999 | 127 |
| 2000 | 117 |
| 2001 | 106 |
| 2002 | 88 |
| 2003 | 92 |
| 2004 | 101 |
| 2005 | 92 |
| 2006 | 96 |
| 2007 | 119 |
| 2008 | 85 |
| 2009 | 101 |
| 2010 | 141 |
| 2011 | 173 |
| 2012 | 180 |
| 2013 | 175 |
| 2014 | 207 |
| 2015 | 246 |
| 2016 | 280 |
| 2017 | 239 |
| 2018 | 288 |
| 2019 | 263 |
| 2020 | 156 |
| 2021 | 100 |
| 2022 | 16 |
| 2023 | 5 |
| 2024 | 2 |