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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 6 |
| 1973 | 23 |
| 1974 | 32 |
| 1975 | 79 |
| 1976 | 122 |
| 1977 | 115 |
| 1978 | 122 |
| 1979 | 185 |
| 1980 | 144 |
| 1981 | 154 |
| 1982 | 114 |
| 1983 | 92 |
| 1984 | 107 |
| 1985 | 108 |
| 1986 | 111 |
| 1987 | 102 |
| 1988 | 114 |
| 1989 | 117 |
| 1990 | 120 |
| 1991 | 122 |
| 1992 | 115 |
| 1993 | 135 |
| 1994 | 136 |
| 1995 | 168 |
| 1996 | 139 |
| 1997 | 159 |
| 1998 | 183 |
| 1999 | 188 |
| 2000 | 221 |
| 2001 | 239 |
| 2002 | 250 |
| 2003 | 209 |
| 2004 | 239 |
| 2005 | 291 |
| 2006 | 271 |
| 2007 | 328 |
| 2008 | 337 |
| 2009 | 347 |
| 2010 | 418 |
| 2011 | 404 |
| 2012 | 407 |
| 2013 | 401 |
| 2014 | 412 |
| 2015 | 401 |
| 2016 | 388 |
| 2017 | 323 |
| 2018 | 328 |
| 2019 | 362 |
| 2020 | 345 |
| 2021 | 340 |
| 2022 | 227 |
| 2023 | 150 |
| 2024 | 239 |