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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1971 | 4 |
| 1972 | 3 |
| 1973 | 4 |
| 1974 | 1 |
| 1976 | 2 |
| 1977 | 1 |
| 1978 | 1 |
| 1980 | 1 |
| 1982 | 2 |
| 1983 | 3 |
| 1984 | 3 |
| 1985 | 2 |
| 1986 | 3 |
| 1987 | 5 |
| 1988 | 3 |
| 1989 | 5 |
| 1990 | 2 |
| 1991 | 4 |
| 1992 | 3 |
| 1993 | 4 |
| 1994 | 8 |
| 1995 | 4 |
| 1996 | 6 |
| 1997 | 12 |
| 1998 | 25 |
| 1999 | 17 |
| 2000 | 19 |
| 2001 | 33 |
| 2002 | 32 |
| 2003 | 35 |
| 2004 | 50 |
| 2005 | 78 |
| 2006 | 73 |
| 2007 | 105 |
| 2008 | 112 |
| 2009 | 128 |
| 2010 | 168 |
| 2011 | 173 |
| 2012 | 247 |
| 2013 | 336 |
| 2014 | 348 |
| 2015 | 399 |
| 2016 | 393 |
| 2017 | 488 |
| 2018 | 577 |
| 2019 | 573 |
| 2020 | 715 |
| 2021 | 839 |
| 2022 | 950 |
| 2023 | 270 |