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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1970 | 1 |
| 1971 | 3 |
| 1972 | 12 |
| 1973 | 40 |
| 1974 | 34 |
| 1975 | 46 |
| 1976 | 77 |
| 1977 | 63 |
| 1978 | 96 |
| 1979 | 63 |
| 1980 | 74 |
| 1981 | 118 |
| 1982 | 109 |
| 1983 | 172 |
| 1984 | 174 |
| 1985 | 150 |
| 1986 | 163 |
| 1987 | 152 |
| 1988 | 138 |
| 1989 | 143 |
| 1990 | 125 |
| 1991 | 112 |
| 1992 | 119 |
| 1993 | 118 |
| 1994 | 122 |
| 1995 | 136 |
| 1996 | 125 |
| 1997 | 148 |
| 1998 | 142 |
| 1999 | 142 |
| 2000 | 165 |
| 2001 | 137 |
| 2002 | 150 |
| 2003 | 178 |
| 2004 | 159 |
| 2005 | 186 |
| 2006 | 244 |
| 2007 | 263 |
| 2008 | 279 |
| 2009 | 282 |
| 2010 | 285 |
| 2011 | 291 |
| 2012 | 273 |
| 2013 | 341 |
| 2014 | 350 |
| 2015 | 360 |
| 2016 | 391 |
| 2017 | 451 |
| 2018 | 482 |
| 2019 | 486 |
| 2020 | 496 |
| 2021 | 498 |
| 2022 | 473 |
| 2023 | 90 |