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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 5 |
| 1963 | 1 |
| 1978 | 1 |
| 1983 | 1 |
| 1987 | 1 |
| 1988 | 3 |
| 1989 | 1 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 6 |
| 1995 | 8 |
| 1996 | 7 |
| 1997 | 7 |
| 1998 | 15 |
| 1999 | 26 |
| 2000 | 24 |
| 2001 | 34 |
| 2002 | 38 |
| 2003 | 59 |
| 2004 | 52 |
| 2005 | 73 |
| 2006 | 82 |
| 2007 | 109 |
| 2008 | 112 |
| 2009 | 127 |
| 2010 | 165 |
| 2011 | 222 |
| 2012 | 200 |
| 2013 | 205 |
| 2014 | 227 |
| 2015 | 254 |
| 2016 | 258 |
| 2017 | 247 |
| 2018 | 274 |
| 2019 | 223 |
| 2020 | 273 |
| 2021 | 292 |
| 2022 | 267 |
| 2023 | 117 |