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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 5 |
| 1969 | 5 |
| 1972 | 9 |
| 1973 | 1 |
| 1975 | 1 |
| 1977 | 2 |
| 1980 | 3 |
| 1981 | 2 |
| 1982 | 1 |
| 1983 | 2 |
| 1984 | 2 |
| 1985 | 3 |
| 1987 | 4 |
| 1988 | 2 |
| 1989 | 31 |
| 1990 | 119 |
| 1991 | 111 |
| 1992 | 142 |
| 1993 | 170 |
| 1994 | 159 |
| 1995 | 156 |
| 1996 | 143 |
| 1997 | 152 |
| 1998 | 164 |
| 1999 | 180 |
| 2000 | 208 |
| 2001 | 215 |
| 2002 | 211 |
| 2003 | 197 |
| 2004 | 248 |
| 2005 | 292 |
| 2006 | 303 |
| 2007 | 316 |
| 2008 | 342 |
| 2009 | 355 |
| 2010 | 410 |
| 2011 | 438 |
| 2012 | 426 |
| 2013 | 426 |
| 2014 | 434 |
| 2015 | 467 |
| 2016 | 445 |
| 2017 | 490 |
| 2018 | 511 |
| 2019 | 518 |
| 2020 | 636 |
| 2021 | 545 |
| 2022 | 504 |
| 2023 | 422 |
| 2024 | 162 |