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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 9 |
| 1967 | 25 |
| 1968 | 31 |
| 1969 | 33 |
| 1970 | 26 |
| 1971 | 28 |
| 1972 | 24 |
| 1973 | 25 |
| 1974 | 21 |
| 1975 | 17 |
| 1976 | 7 |
| 1977 | 9 |
| 1978 | 12 |
| 1979 | 10 |
| 1980 | 15 |
| 1981 | 11 |
| 1982 | 6 |
| 1983 | 12 |
| 1984 | 8 |
| 1985 | 17 |
| 1986 | 14 |
| 1987 | 129 |
| 1988 | 193 |
| 1989 | 245 |
| 1990 | 216 |
| 1991 | 108 |
| 1992 | 135 |
| 1993 | 115 |
| 1994 | 89 |
| 1995 | 84 |
| 1996 | 141 |
| 1997 | 137 |
| 1998 | 141 |
| 1999 | 114 |
| 2000 | 176 |
| 2001 | 255 |
| 2002 | 222 |
| 2003 | 129 |
| 2004 | 97 |
| 2005 | 98 |
| 2006 | 79 |
| 2007 | 60 |
| 2008 | 77 |
| 2009 | 94 |
| 2010 | 113 |
| 2011 | 84 |
| 2012 | 57 |
| 2013 | 47 |
| 2014 | 58 |
| 2015 | 67 |
| 2016 | 54 |
| 2017 | 63 |
| 2018 | 66 |
| 2019 | 62 |
| 2020 | 51 |
| 2021 | 52 |
| 2022 | 14 |
| 2023 | 2 |
| 2024 | 0 |