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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 1 |
| 1960 | 1 |
| 1964 | 1 |
| 1965 | 1 |
| 1968 | 1 |
| 1981 | 4 |
| 1982 | 4 |
| 1983 | 7 |
| 1984 | 9 |
| 1985 | 11 |
| 1986 | 11 |
| 1987 | 13 |
| 1988 | 13 |
| 1989 | 11 |
| 1990 | 14 |
| 1991 | 23 |
| 1992 | 25 |
| 1993 | 28 |
| 1994 | 32 |
| 1995 | 29 |
| 1996 | 30 |
| 1997 | 32 |
| 1998 | 25 |
| 1999 | 30 |
| 2000 | 29 |
| 2001 | 58 |
| 2002 | 57 |
| 2003 | 87 |
| 2004 | 114 |
| 2005 | 117 |
| 2006 | 154 |
| 2007 | 179 |
| 2008 | 179 |
| 2009 | 231 |
| 2010 | 260 |
| 2011 | 316 |
| 2012 | 412 |
| 2013 | 501 |
| 2014 | 571 |
| 2015 | 648 |
| 2016 | 658 |
| 2017 | 700 |
| 2018 | 770 |
| 2019 | 884 |
| 2020 | 1131 |
| 2021 | 1307 |
| 2022 | 1509 |
| 2023 | 1466 |
| 2024 | 20 |