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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 1 |
| 1969 | 2 |
| 1970 | 1 |
| 1973 | 1 |
| 1974 | 5 |
| 1975 | 8 |
| 1976 | 1 |
| 1977 | 2 |
| 1978 | 3 |
| 1979 | 16 |
| 1980 | 35 |
| 1981 | 20 |
| 1982 | 14 |
| 1983 | 16 |
| 1984 | 17 |
| 1985 | 11 |
| 1986 | 18 |
| 1987 | 36 |
| 1988 | 40 |
| 1989 | 51 |
| 1990 | 45 |
| 1991 | 32 |
| 1992 | 63 |
| 1993 | 48 |
| 1994 | 66 |
| 1995 | 50 |
| 1996 | 60 |
| 1997 | 50 |
| 1998 | 79 |
| 1999 | 88 |
| 2000 | 82 |
| 2001 | 101 |
| 2002 | 227 |
| 2003 | 710 |
| 2004 | 1686 |
| 2005 | 2805 |
| 2006 | 3377 |
| 2007 | 3277 |
| 2008 | 3508 |
| 2009 | 3241 |
| 2010 | 2897 |
| 2011 | 2599 |
| 2012 | 3470 |
| 2013 | 3731 |
| 2014 | 3363 |
| 2015 | 2966 |
| 2016 | 2189 |
| 2017 | 1777 |
| 2018 | 1781 |
| 2019 | 1810 |
| 2020 | 1280 |
| 2021 | 700 |
| 2022 | 211 |
| 2023 | 87 |
| 2024 | 19 |