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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 5 |
| 1971 | 4 |
| 1972 | 4 |
| 1973 | 2 |
| 1975 | 21 |
| 1976 | 10 |
| 1977 | 2 |
| 1978 | 10 |
| 1979 | 3 |
| 1980 | 23 |
| 1981 | 12 |
| 1982 | 16 |
| 1983 | 10 |
| 1984 | 10 |
| 1985 | 7 |
| 1986 | 14 |
| 1987 | 6 |
| 1988 | 5 |
| 1989 | 31 |
| 1990 | 24 |
| 1991 | 38 |
| 1992 | 66 |
| 1993 | 71 |
| 1994 | 88 |
| 1995 | 68 |
| 1996 | 86 |
| 1997 | 107 |
| 1998 | 126 |
| 1999 | 171 |
| 2000 | 185 |
| 2001 | 240 |
| 2002 | 314 |
| 2003 | 420 |
| 2004 | 783 |
| 2005 | 1555 |
| 2006 | 4555 |
| 2007 | 5723 |
| 2008 | 7419 |
| 2009 | 8500 |
| 2010 | 9520 |
| 2011 | 10437 |
| 2012 | 11176 |
| 2013 | 12435 |
| 2014 | 12809 |
| 2015 | 13541 |
| 2016 | 12991 |
| 2017 | 12947 |
| 2018 | 13492 |
| 2019 | 13595 |
| 2020 | 15067 |
| 2021 | 16423 |
| 2022 | 14692 |
| 2023 | 9974 |
| 2024 | 1600 |