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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1968 | 5 |
| 1969 | 17 |
| 1970 | 10 |
| 1971 | 22 |
| 1972 | 17 |
| 1973 | 7 |
| 1974 | 6 |
| 1975 | 5 |
| 1976 | 11 |
| 1977 | 19 |
| 1978 | 22 |
| 1979 | 11 |
| 1980 | 10 |
| 1981 | 11 |
| 1982 | 4 |
| 1983 | 15 |
| 1984 | 14 |
| 1985 | 8 |
| 1986 | 10 |
| 1987 | 13 |
| 1988 | 13 |
| 1989 | 21 |
| 1990 | 16 |
| 1991 | 23 |
| 1992 | 26 |
| 1993 | 20 |
| 1994 | 29 |
| 1995 | 43 |
| 1996 | 52 |
| 1997 | 53 |
| 1998 | 48 |
| 1999 | 75 |
| 2000 | 72 |
| 2001 | 79 |
| 2002 | 134 |
| 2003 | 139 |
| 2004 | 154 |
| 2005 | 163 |
| 2006 | 219 |
| 2007 | 242 |
| 2008 | 258 |
| 2009 | 330 |
| 2010 | 412 |
| 2011 | 469 |
| 2012 | 534 |
| 2013 | 588 |
| 2014 | 672 |
| 2015 | 716 |
| 2016 | 757 |
| 2017 | 764 |
| 2018 | 817 |
| 2019 | 832 |
| 2020 | 884 |
| 2021 | 834 |
| 2022 | 741 |
| 2023 | 639 |
| 2024 | 248 |