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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 3 |
| 1972 | 1 |
| 1973 | 22 |
| 1974 | 58 |
| 1975 | 48 |
| 1976 | 71 |
| 1977 | 82 |
| 1978 | 170 |
| 1979 | 221 |
| 1980 | 288 |
| 1981 | 290 |
| 1982 | 284 |
| 1983 | 250 |
| 1984 | 239 |
| 1985 | 252 |
| 1986 | 211 |
| 1987 | 245 |
| 1988 | 232 |
| 1989 | 243 |
| 1990 | 264 |
| 1991 | 211 |
| 1992 | 238 |
| 1993 | 216 |
| 1994 | 208 |
| 1995 | 199 |
| 1996 | 201 |
| 1997 | 238 |
| 1998 | 226 |
| 1999 | 262 |
| 2000 | 289 |
| 2001 | 279 |
| 2002 | 285 |
| 2003 | 312 |
| 2004 | 340 |
| 2005 | 368 |
| 2006 | 389 |
| 2007 | 399 |
| 2008 | 406 |
| 2009 | 438 |
| 2010 | 452 |
| 2011 | 505 |
| 2012 | 514 |
| 2013 | 586 |
| 2014 | 589 |
| 2015 | 586 |
| 2016 | 511 |
| 2017 | 486 |
| 2018 | 462 |
| 2019 | 443 |
| 2020 | 410 |
| 2021 | 305 |
| 2022 | 84 |
| 2023 | 36 |
| 2024 | 61 |