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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1977 | 3 |
| 1978 | 4 |
| 1979 | 33 |
| 1980 | 61 |
| 1981 | 66 |
| 1982 | 102 |
| 1983 | 121 |
| 1984 | 147 |
| 1985 | 136 |
| 1986 | 162 |
| 1987 | 107 |
| 1988 | 163 |
| 1989 | 195 |
| 1990 | 275 |
| 1991 | 319 |
| 1992 | 247 |
| 1993 | 176 |
| 1994 | 233 |
| 1995 | 214 |
| 1996 | 202 |
| 1997 | 273 |
| 1998 | 391 |
| 1999 | 559 |
| 2000 | 453 |
| 2001 | 478 |
| 2002 | 453 |
| 2003 | 616 |
| 2004 | 652 |
| 2005 | 729 |
| 2006 | 597 |
| 2007 | 607 |
| 2008 | 690 |
| 2009 | 789 |
| 2010 | 801 |
| 2011 | 921 |
| 2012 | 948 |
| 2013 | 1028 |
| 2014 | 962 |
| 2015 | 901 |
| 2016 | 878 |
| 2017 | 932 |
| 2018 | 1094 |
| 2019 | 984 |
| 2020 | 657 |
| 2021 | 278 |
| 2022 | 38 |
| 2023 | 10 |
| 2024 | 27 |