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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1966 | 1 |
| 1979 | 8 |
| 1980 | 8 |
| 1981 | 13 |
| 1982 | 25 |
| 1983 | 32 |
| 1984 | 20 |
| 1985 | 37 |
| 1986 | 55 |
| 1987 | 40 |
| 1988 | 57 |
| 1989 | 70 |
| 1990 | 76 |
| 1991 | 94 |
| 1992 | 92 |
| 1993 | 99 |
| 1994 | 114 |
| 1995 | 141 |
| 1996 | 134 |
| 1997 | 163 |
| 1998 | 177 |
| 1999 | 207 |
| 2000 | 230 |
| 2001 | 272 |
| 2002 | 338 |
| 2003 | 447 |
| 2004 | 560 |
| 2005 | 717 |
| 2006 | 778 |
| 2007 | 885 |
| 2008 | 1062 |
| 2009 | 1270 |
| 2010 | 1440 |
| 2011 | 1701 |
| 2012 | 2172 |
| 2013 | 2595 |
| 2014 | 2860 |
| 2015 | 3226 |
| 2016 | 3400 |
| 2017 | 3935 |
| 2018 | 4383 |
| 2019 | 5256 |
| 2020 | 6515 |
| 2021 | 7443 |
| 2022 | 9023 |
| 2023 | 4135 |