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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1965 | 1 |
| 1979 | 15 |
| 1980 | 23 |
| 1981 | 31 |
| 1982 | 29 |
| 1983 | 49 |
| 1984 | 50 |
| 1985 | 45 |
| 1986 | 62 |
| 1987 | 54 |
| 1988 | 85 |
| 1989 | 82 |
| 1990 | 103 |
| 1991 | 116 |
| 1992 | 133 |
| 1993 | 179 |
| 1994 | 220 |
| 1995 | 246 |
| 1996 | 260 |
| 1997 | 306 |
| 1998 | 350 |
| 1999 | 375 |
| 2000 | 431 |
| 2001 | 517 |
| 2002 | 630 |
| 2003 | 762 |
| 2004 | 881 |
| 2005 | 1043 |
| 2006 | 1267 |
| 2007 | 1399 |
| 2008 | 1624 |
| 2009 | 2028 |
| 2010 | 2354 |
| 2011 | 2719 |
| 2012 | 3107 |
| 2013 | 3763 |
| 2014 | 4402 |
| 2015 | 4896 |
| 2016 | 5343 |
| 2017 | 5853 |
| 2018 | 6819 |
| 2019 | 7928 |
| 2020 | 9367 |
| 2021 | 10755 |
| 2022 | 13098 |
| 2023 | 3801 |