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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 2 |
| 1968 | 2 |
| 1969 | 3 |
| 1970 | 6 |
| 1971 | 2 |
| 1972 | 3 |
| 1973 | 2 |
| 1974 | 12 |
| 1975 | 7 |
| 1976 | 1 |
| 1977 | 6 |
| 1978 | 3 |
| 1979 | 5 |
| 1980 | 8 |
| 1981 | 9 |
| 1982 | 7 |
| 1983 | 12 |
| 1984 | 20 |
| 1985 | 24 |
| 1986 | 21 |
| 1987 | 28 |
| 1988 | 40 |
| 1989 | 70 |
| 1990 | 68 |
| 1991 | 53 |
| 1992 | 107 |
| 1993 | 108 |
| 1994 | 92 |
| 1995 | 99 |
| 1996 | 108 |
| 1997 | 85 |
| 1998 | 109 |
| 1999 | 112 |
| 2000 | 118 |
| 2001 | 149 |
| 2002 | 163 |
| 2003 | 148 |
| 2004 | 188 |
| 2005 | 204 |
| 2006 | 180 |
| 2007 | 220 |
| 2008 | 270 |
| 2009 | 298 |
| 2010 | 311 |
| 2011 | 431 |
| 2012 | 523 |
| 2013 | 616 |
| 2014 | 781 |
| 2015 | 729 |
| 2016 | 641 |
| 2017 | 661 |
| 2018 | 693 |
| 2019 | 768 |
| 2020 | 719 |
| 2021 | 515 |
| 2022 | 49 |
| 2023 | 28 |
| 2024 | 229 |