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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1980 | 2 |
| 1981 | 2 |
| 1982 | 3 |
| 1983 | 1 |
| 1984 | 4 |
| 1985 | 4 |
| 1986 | 3 |
| 1987 | 7 |
| 1988 | 6 |
| 1989 | 8 |
| 1990 | 5 |
| 1991 | 10 |
| 1992 | 8 |
| 1993 | 21 |
| 1994 | 21 |
| 1995 | 21 |
| 1996 | 17 |
| 1997 | 15 |
| 1998 | 25 |
| 1999 | 23 |
| 2000 | 25 |
| 2001 | 41 |
| 2002 | 54 |
| 2003 | 56 |
| 2004 | 59 |
| 2005 | 81 |
| 2006 | 96 |
| 2007 | 101 |
| 2008 | 130 |
| 2009 | 167 |
| 2010 | 182 |
| 2011 | 215 |
| 2012 | 264 |
| 2013 | 296 |
| 2014 | 394 |
| 2015 | 454 |
| 2016 | 502 |
| 2017 | 490 |
| 2018 | 539 |
| 2019 | 628 |
| 2020 | 810 |
| 2021 | 950 |
| 2022 | 1011 |
| 2023 | 13 |