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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 2 |
| 1967 | 6 |
| 1968 | 9 |
| 1969 | 7 |
| 1970 | 2 |
| 1971 | 9 |
| 1972 | 12 |
| 1973 | 6 |
| 1974 | 19 |
| 1975 | 16 |
| 1976 | 20 |
| 1977 | 24 |
| 1978 | 50 |
| 1979 | 34 |
| 1980 | 43 |
| 1981 | 57 |
| 1982 | 61 |
| 1983 | 45 |
| 1984 | 36 |
| 1985 | 43 |
| 1986 | 29 |
| 1987 | 27 |
| 1988 | 37 |
| 1989 | 25 |
| 1990 | 19 |
| 1991 | 48 |
| 1992 | 26 |
| 1993 | 34 |
| 1994 | 45 |
| 1995 | 43 |
| 1996 | 44 |
| 1997 | 54 |
| 1998 | 61 |
| 1999 | 75 |
| 2000 | 90 |
| 2001 | 63 |
| 2002 | 87 |
| 2003 | 74 |
| 2004 | 88 |
| 2005 | 152 |
| 2006 | 141 |
| 2007 | 178 |
| 2008 | 201 |
| 2009 | 252 |
| 2010 | 254 |
| 2011 | 286 |
| 2012 | 356 |
| 2013 | 387 |
| 2014 | 480 |
| 2015 | 504 |
| 2016 | 551 |
| 2017 | 640 |
| 2018 | 699 |
| 2019 | 662 |
| 2020 | 532 |
| 2021 | 402 |
| 2022 | 187 |
| 2023 | 122 |
| 2024 | 68 |