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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 2 |
| 1967 | 2 |
| 1969 | 3 |
| 1970 | 4 |
| 1971 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 1 |
| 1976 | 2 |
| 1977 | 2 |
| 1978 | 6 |
| 1979 | 1 |
| 1980 | 7 |
| 1981 | 3 |
| 1982 | 4 |
| 1983 | 7 |
| 1984 | 8 |
| 1985 | 6 |
| 1986 | 3 |
| 1987 | 6 |
| 1988 | 7 |
| 1989 | 15 |
| 1990 | 12 |
| 1991 | 16 |
| 1992 | 25 |
| 1993 | 17 |
| 1994 | 17 |
| 1995 | 41 |
| 1996 | 32 |
| 1997 | 63 |
| 1998 | 77 |
| 1999 | 104 |
| 2000 | 122 |
| 2001 | 135 |
| 2002 | 205 |
| 2003 | 268 |
| 2004 | 293 |
| 2005 | 353 |
| 2006 | 443 |
| 2007 | 572 |
| 2008 | 578 |
| 2009 | 627 |
| 2010 | 805 |
| 2011 | 952 |
| 2012 | 1102 |
| 2013 | 1304 |
| 2014 | 1354 |
| 2015 | 1296 |
| 2016 | 1197 |
| 2017 | 1312 |
| 2018 | 1442 |
| 2019 | 1609 |
| 2020 | 1740 |
| 2021 | 1774 |
| 2022 | 1250 |
| 2023 | 917 |
| 2024 | 319 |