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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1960 | 2 |
| 1966 | 2 |
| 1972 | 7 |
| 1974 | 11 |
| 1975 | 86 |
| 1976 | 79 |
| 1977 | 93 |
| 1978 | 119 |
| 1979 | 139 |
| 1980 | 123 |
| 1981 | 149 |
| 1982 | 137 |
| 1983 | 111 |
| 1984 | 119 |
| 1985 | 117 |
| 1986 | 97 |
| 1987 | 109 |
| 1988 | 115 |
| 1989 | 163 |
| 1990 | 176 |
| 1991 | 141 |
| 1992 | 189 |
| 1993 | 243 |
| 1994 | 301 |
| 1995 | 233 |
| 1996 | 238 |
| 1997 | 218 |
| 1998 | 256 |
| 1999 | 227 |
| 2000 | 257 |
| 2001 | 395 |
| 2002 | 366 |
| 2003 | 310 |
| 2004 | 469 |
| 2005 | 522 |
| 2006 | 557 |
| 2007 | 558 |
| 2008 | 606 |
| 2009 | 602 |
| 2010 | 577 |
| 2011 | 600 |
| 2012 | 514 |
| 2013 | 457 |
| 2014 | 401 |
| 2015 | 386 |
| 2016 | 312 |
| 2017 | 318 |
| 2018 | 292 |
| 2019 | 305 |
| 2020 | 214 |
| 2021 | 77 |
| 2022 | 40 |
| 2023 | 21 |
| 2024 | 15 |