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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 3 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 2 |
| 1974 | 1 |
| 1975 | 2 |
| 1976 | 52 |
| 1977 | 163 |
| 1978 | 135 |
| 1979 | 167 |
| 1980 | 137 |
| 1981 | 121 |
| 1982 | 133 |
| 1983 | 168 |
| 1984 | 148 |
| 1985 | 189 |
| 1986 | 170 |
| 1987 | 182 |
| 1988 | 169 |
| 1989 | 188 |
| 1990 | 211 |
| 1991 | 200 |
| 1992 | 236 |
| 1993 | 187 |
| 1994 | 205 |
| 1995 | 233 |
| 1996 | 252 |
| 1997 | 245 |
| 1998 | 235 |
| 1999 | 273 |
| 2000 | 268 |
| 2001 | 265 |
| 2002 | 259 |
| 2003 | 295 |
| 2004 | 292 |
| 2005 | 330 |
| 2006 | 349 |
| 2007 | 413 |
| 2008 | 436 |
| 2009 | 397 |
| 2010 | 480 |
| 2011 | 507 |
| 2012 | 477 |
| 2013 | 573 |
| 2014 | 584 |
| 2015 | 576 |
| 2016 | 572 |
| 2017 | 548 |
| 2018 | 564 |
| 2019 | 558 |
| 2020 | 581 |
| 2021 | 560 |
| 2022 | 403 |
| 2023 | 327 |
| 2024 | 145 |