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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1965 | 2 |
| 1979 | 2 |
| 1980 | 1 |
| 1981 | 4 |
| 1982 | 1 |
| 1983 | 6 |
| 1984 | 13 |
| 1985 | 7 |
| 1986 | 13 |
| 1987 | 14 |
| 1988 | 7 |
| 1989 | 11 |
| 1990 | 14 |
| 1991 | 19 |
| 1992 | 25 |
| 1993 | 45 |
| 1994 | 53 |
| 1995 | 47 |
| 1996 | 75 |
| 1997 | 69 |
| 1998 | 58 |
| 1999 | 77 |
| 2000 | 100 |
| 2001 | 91 |
| 2002 | 160 |
| 2003 | 190 |
| 2004 | 249 |
| 2005 | 282 |
| 2006 | 336 |
| 2007 | 405 |
| 2008 | 478 |
| 2009 | 523 |
| 2010 | 653 |
| 2011 | 756 |
| 2012 | 938 |
| 2013 | 1081 |
| 2014 | 1263 |
| 2015 | 1381 |
| 2016 | 1436 |
| 2017 | 1653 |
| 2018 | 1911 |
| 2019 | 2186 |
| 2020 | 2517 |
| 2021 | 2960 |
| 2022 | 3496 |
| 2023 | 1535 |