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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 2 |
| 1967 | 14 |
| 1968 | 11 |
| 1969 | 10 |
| 1970 | 12 |
| 1971 | 15 |
| 1972 | 25 |
| 1973 | 19 |
| 1974 | 15 |
| 1975 | 10 |
| 1976 | 7 |
| 1977 | 16 |
| 1978 | 41 |
| 1979 | 81 |
| 1980 | 95 |
| 1981 | 108 |
| 1982 | 117 |
| 1983 | 147 |
| 1984 | 233 |
| 1985 | 230 |
| 1986 | 203 |
| 1987 | 224 |
| 1988 | 244 |
| 1989 | 206 |
| 1990 | 317 |
| 1991 | 413 |
| 1992 | 526 |
| 1993 | 662 |
| 1994 | 725 |
| 1995 | 805 |
| 1996 | 795 |
| 1997 | 752 |
| 1998 | 726 |
| 1999 | 678 |
| 2000 | 805 |
| 2001 | 690 |
| 2002 | 662 |
| 2003 | 867 |
| 2004 | 888 |
| 2005 | 864 |
| 2006 | 897 |
| 2007 | 899 |
| 2008 | 841 |
| 2009 | 803 |
| 2010 | 779 |
| 2011 | 794 |
| 2012 | 816 |
| 2013 | 736 |
| 2014 | 680 |
| 2015 | 650 |
| 2016 | 593 |
| 2017 | 525 |
| 2018 | 519 |
| 2019 | 527 |
| 2020 | 424 |
| 2021 | 320 |
| 2022 | 148 |
| 2023 | 81 |
| 2024 | 21 |