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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 1 |
| 1969 | 2 |
| 1971 | 1 |
| 1973 | 5 |
| 1974 | 24 |
| 1975 | 62 |
| 1976 | 56 |
| 1977 | 74 |
| 1978 | 80 |
| 1979 | 106 |
| 1980 | 118 |
| 1981 | 111 |
| 1982 | 118 |
| 1983 | 129 |
| 1984 | 150 |
| 1985 | 147 |
| 1986 | 136 |
| 1987 | 146 |
| 1988 | 153 |
| 1989 | 197 |
| 1990 | 189 |
| 1991 | 161 |
| 1992 | 127 |
| 1993 | 129 |
| 1994 | 127 |
| 1995 | 101 |
| 1996 | 134 |
| 1997 | 131 |
| 1998 | 150 |
| 1999 | 177 |
| 2000 | 150 |
| 2001 | 158 |
| 2002 | 161 |
| 2003 | 182 |
| 2004 | 168 |
| 2005 | 204 |
| 2006 | 236 |
| 2007 | 284 |
| 2008 | 323 |
| 2009 | 369 |
| 2010 | 385 |
| 2011 | 480 |
| 2012 | 516 |
| 2013 | 558 |
| 2014 | 625 |
| 2015 | 651 |
| 2016 | 575 |
| 2017 | 561 |
| 2018 | 537 |
| 2019 | 622 |
| 2020 | 432 |
| 2021 | 230 |
| 2022 | 174 |
| 2023 | 136 |
| 2024 | 50 |