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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1970 | 1 |
| 1971 | 1 |
| 1974 | 1 |
| 1982 | 2 |
| 1983 | 1 |
| 1984 | 1 |
| 1987 | 5 |
| 1988 | 7 |
| 1989 | 10 |
| 1990 | 32 |
| 1991 | 35 |
| 1992 | 28 |
| 1993 | 60 |
| 1994 | 45 |
| 1995 | 44 |
| 1996 | 42 |
| 1997 | 60 |
| 1998 | 67 |
| 1999 | 89 |
| 2000 | 80 |
| 2001 | 105 |
| 2002 | 106 |
| 2003 | 131 |
| 2004 | 141 |
| 2005 | 191 |
| 2006 | 205 |
| 2007 | 213 |
| 2008 | 207 |
| 2009 | 175 |
| 2010 | 204 |
| 2011 | 255 |
| 2012 | 277 |
| 2013 | 299 |
| 2014 | 379 |
| 2015 | 380 |
| 2016 | 409 |
| 2017 | 416 |
| 2018 | 508 |
| 2019 | 642 |
| 2020 | 454 |
| 2021 | 242 |
| 2022 | 31 |
| 2023 | 10 |
| 2024 | 3 |