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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1973 | 8 |
| 1974 | 32 |
| 1975 | 51 |
| 1976 | 45 |
| 1977 | 60 |
| 1978 | 85 |
| 1979 | 76 |
| 1980 | 87 |
| 1981 | 94 |
| 1982 | 90 |
| 1983 | 67 |
| 1984 | 93 |
| 1985 | 81 |
| 1986 | 98 |
| 1987 | 92 |
| 1988 | 90 |
| 1989 | 92 |
| 1990 | 115 |
| 1991 | 105 |
| 1992 | 135 |
| 1993 | 99 |
| 1994 | 102 |
| 1995 | 114 |
| 1996 | 139 |
| 1997 | 125 |
| 1998 | 123 |
| 1999 | 151 |
| 2000 | 159 |
| 2001 | 181 |
| 2002 | 196 |
| 2003 | 232 |
| 2004 | 269 |
| 2005 | 256 |
| 2006 | 313 |
| 2007 | 349 |
| 2008 | 382 |
| 2009 | 423 |
| 2010 | 557 |
| 2011 | 634 |
| 2012 | 667 |
| 2013 | 626 |
| 2014 | 692 |
| 2015 | 654 |
| 2016 | 654 |
| 2017 | 551 |
| 2018 | 489 |
| 2019 | 417 |
| 2020 | 334 |
| 2021 | 221 |
| 2022 | 76 |
| 2023 | 60 |
| 2024 | 60 |