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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1979 | 4 |
| 1980 | 3 |
| 1981 | 9 |
| 1982 | 9 |
| 1983 | 12 |
| 1984 | 24 |
| 1985 | 17 |
| 1986 | 15 |
| 1987 | 39 |
| 1988 | 38 |
| 1989 | 32 |
| 1990 | 44 |
| 1991 | 55 |
| 1992 | 72 |
| 1993 | 77 |
| 1994 | 130 |
| 1995 | 128 |
| 1996 | 151 |
| 1997 | 149 |
| 1998 | 141 |
| 1999 | 203 |
| 2000 | 219 |
| 2001 | 292 |
| 2002 | 358 |
| 2003 | 380 |
| 2004 | 487 |
| 2005 | 604 |
| 2006 | 639 |
| 2007 | 751 |
| 2008 | 975 |
| 2009 | 1107 |
| 2010 | 1295 |
| 2011 | 1516 |
| 2012 | 1731 |
| 2013 | 2138 |
| 2014 | 2503 |
| 2015 | 2816 |
| 2016 | 2901 |
| 2017 | 3188 |
| 2018 | 3712 |
| 2019 | 4163 |
| 2020 | 5035 |
| 2021 | 5678 |
| 2022 | 6582 |
| 2023 | 3180 |