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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1973 | 13 |
| 1974 | 17 |
| 1975 | 16 |
| 1976 | 18 |
| 1977 | 23 |
| 1978 | 50 |
| 1979 | 56 |
| 1980 | 36 |
| 1981 | 23 |
| 1982 | 37 |
| 1983 | 54 |
| 1984 | 62 |
| 1985 | 69 |
| 1986 | 72 |
| 1987 | 101 |
| 1988 | 118 |
| 1989 | 120 |
| 1990 | 154 |
| 1991 | 152 |
| 1992 | 213 |
| 1993 | 234 |
| 1994 | 243 |
| 1995 | 236 |
| 1996 | 276 |
| 1997 | 317 |
| 1998 | 293 |
| 1999 | 366 |
| 2000 | 358 |
| 2001 | 650 |
| 2002 | 632 |
| 2003 | 475 |
| 2004 | 504 |
| 2005 | 553 |
| 2006 | 497 |
| 2007 | 418 |
| 2008 | 446 |
| 2009 | 348 |
| 2010 | 262 |
| 2011 | 256 |
| 2012 | 261 |
| 2013 | 316 |
| 2014 | 280 |
| 2015 | 263 |
| 2016 | 350 |
| 2017 | 334 |
| 2018 | 269 |
| 2019 | 319 |
| 2020 | 365 |
| 2021 | 265 |
| 2022 | 322 |
| 2023 | 291 |
| 2024 | 132 |