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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1964 | 1 |
| 1974 | 1 |
| 1980 | 18 |
| 1981 | 59 |
| 1982 | 56 |
| 1983 | 78 |
| 1984 | 78 |
| 1985 | 85 |
| 1986 | 83 |
| 1987 | 96 |
| 1988 | 81 |
| 1989 | 91 |
| 1990 | 98 |
| 1991 | 100 |
| 1992 | 77 |
| 1993 | 114 |
| 1994 | 85 |
| 1995 | 72 |
| 1996 | 68 |
| 1997 | 73 |
| 1998 | 61 |
| 1999 | 64 |
| 2000 | 94 |
| 2001 | 80 |
| 2002 | 90 |
| 2003 | 96 |
| 2004 | 125 |
| 2005 | 146 |
| 2006 | 163 |
| 2007 | 207 |
| 2008 | 201 |
| 2009 | 254 |
| 2010 | 240 |
| 2011 | 253 |
| 2012 | 328 |
| 2013 | 352 |
| 2014 | 333 |
| 2015 | 380 |
| 2016 | 362 |
| 2017 | 360 |
| 2018 | 413 |
| 2019 | 412 |
| 2020 | 429 |
| 2021 | 444 |
| 2022 | 319 |
| 2023 | 22 |