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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1968 | 1 |
| 1976 | 1 |
| 1977 | 7 |
| 1978 | 6 |
| 1979 | 14 |
| 1980 | 24 |
| 1981 | 27 |
| 1982 | 28 |
| 1983 | 25 |
| 1984 | 29 |
| 1985 | 27 |
| 1986 | 20 |
| 1987 | 28 |
| 1988 | 21 |
| 1989 | 15 |
| 1990 | 22 |
| 1991 | 21 |
| 1992 | 23 |
| 1993 | 22 |
| 1994 | 11 |
| 1995 | 19 |
| 1996 | 16 |
| 1997 | 34 |
| 1998 | 21 |
| 1999 | 28 |
| 2000 | 39 |
| 2001 | 59 |
| 2002 | 56 |
| 2003 | 95 |
| 2004 | 136 |
| 2005 | 205 |
| 2006 | 373 |
| 2007 | 595 |
| 2008 | 865 |
| 2009 | 1177 |
| 2010 | 1417 |
| 2011 | 1750 |
| 2012 | 2227 |
| 2013 | 2685 |
| 2014 | 3096 |
| 2015 | 3469 |
| 2016 | 3756 |
| 2017 | 4232 |
| 2018 | 4786 |
| 2019 | 5352 |
| 2020 | 5834 |
| 2021 | 5720 |
| 2022 | 4996 |
| 2023 | 4508 |
| 2024 | 4357 |
| 2025 | 7 |