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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 5 |
| 1966 | 16 |
| 1967 | 28 |
| 1968 | 24 |
| 1969 | 23 |
| 1970 | 37 |
| 1971 | 40 |
| 1972 | 45 |
| 1973 | 58 |
| 1974 | 95 |
| 1975 | 82 |
| 1976 | 140 |
| 1977 | 135 |
| 1978 | 87 |
| 1979 | 88 |
| 1980 | 109 |
| 1981 | 73 |
| 1982 | 107 |
| 1983 | 116 |
| 1984 | 123 |
| 1985 | 169 |
| 1986 | 184 |
| 1987 | 183 |
| 1988 | 333 |
| 1989 | 409 |
| 1990 | 489 |
| 1991 | 552 |
| 1992 | 751 |
| 1993 | 833 |
| 1994 | 837 |
| 1995 | 817 |
| 1996 | 921 |
| 1997 | 828 |
| 1998 | 782 |
| 1999 | 718 |
| 2000 | 812 |
| 2001 | 799 |
| 2002 | 857 |
| 2003 | 857 |
| 2004 | 891 |
| 2005 | 892 |
| 2006 | 1040 |
| 2007 | 1196 |
| 2008 | 1258 |
| 2009 | 1580 |
| 2010 | 1596 |
| 2011 | 1710 |
| 2012 | 1636 |
| 2013 | 1648 |
| 2014 | 1657 |
| 2015 | 1547 |
| 2016 | 1689 |
| 2017 | 1837 |
| 2018 | 1773 |
| 2019 | 1657 |
| 2020 | 1135 |
| 2021 | 676 |
| 2022 | 88 |
| 2023 | 14 |
| 2024 | 59 |