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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 4 |
| 1969 | 3 |
| 1970 | 2 |
| 1971 | 2 |
| 1973 | 7 |
| 1974 | 38 |
| 1975 | 80 |
| 1976 | 91 |
| 1977 | 94 |
| 1978 | 105 |
| 1979 | 124 |
| 1980 | 128 |
| 1981 | 99 |
| 1982 | 143 |
| 1983 | 137 |
| 1984 | 179 |
| 1985 | 166 |
| 1986 | 101 |
| 1987 | 128 |
| 1988 | 141 |
| 1989 | 179 |
| 1990 | 158 |
| 1991 | 170 |
| 1992 | 124 |
| 1993 | 163 |
| 1994 | 134 |
| 1995 | 171 |
| 1996 | 144 |
| 1997 | 203 |
| 1998 | 181 |
| 1999 | 161 |
| 2000 | 212 |
| 2001 | 180 |
| 2002 | 233 |
| 2003 | 323 |
| 2004 | 316 |
| 2005 | 389 |
| 2006 | 446 |
| 2007 | 567 |
| 2008 | 649 |
| 2009 | 751 |
| 2010 | 825 |
| 2011 | 922 |
| 2012 | 947 |
| 2013 | 1054 |
| 2014 | 1122 |
| 2015 | 1002 |
| 2016 | 699 |
| 2017 | 632 |
| 2018 | 728 |
| 2019 | 596 |
| 2020 | 447 |
| 2021 | 330 |
| 2022 | 448 |
| 2023 | 376 |
| 2024 | 121 |