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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1963 | 1 |
| 1967 | 1 |
| 1968 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 2 |
| 1977 | 2 |
| 1978 | 3 |
| 1979 | 88 |
| 1980 | 172 |
| 1981 | 175 |
| 1982 | 174 |
| 1983 | 168 |
| 1984 | 194 |
| 1985 | 230 |
| 1986 | 263 |
| 1987 | 253 |
| 1988 | 384 |
| 1989 | 494 |
| 1990 | 494 |
| 1991 | 579 |
| 1992 | 601 |
| 1993 | 540 |
| 1994 | 612 |
| 1995 | 686 |
| 1996 | 690 |
| 1997 | 687 |
| 1998 | 702 |
| 1999 | 688 |
| 2000 | 706 |
| 2001 | 765 |
| 2002 | 815 |
| 2003 | 768 |
| 2004 | 933 |
| 2005 | 879 |
| 2006 | 868 |
| 2007 | 989 |
| 2008 | 1061 |
| 2009 | 972 |
| 2010 | 995 |
| 2011 | 1034 |
| 2012 | 1036 |
| 2013 | 1015 |
| 2014 | 1002 |
| 2015 | 967 |
| 2016 | 872 |
| 2017 | 844 |
| 2018 | 983 |
| 2019 | 895 |
| 2020 | 781 |
| 2021 | 658 |
| 2022 | 279 |
| 2023 | 209 |
| 2024 | 116 |