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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 1 |
| 1973 | 5 |
| 1975 | 5 |
| 1976 | 3 |
| 1977 | 1 |
| 1979 | 2 |
| 1980 | 5 |
| 1981 | 5 |
| 1982 | 2 |
| 1983 | 5 |
| 1984 | 1 |
| 1985 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1989 | 3 |
| 1991 | 4 |
| 1992 | 4 |
| 1993 | 8 |
| 1994 | 5 |
| 1995 | 9 |
| 1996 | 7 |
| 1997 | 11 |
| 1998 | 19 |
| 1999 | 14 |
| 2000 | 27 |
| 2001 | 30 |
| 2002 | 45 |
| 2003 | 45 |
| 2004 | 61 |
| 2005 | 54 |
| 2006 | 77 |
| 2007 | 78 |
| 2008 | 106 |
| 2009 | 117 |
| 2010 | 167 |
| 2011 | 182 |
| 2012 | 226 |
| 2013 | 251 |
| 2014 | 244 |
| 2015 | 266 |
| 2016 | 287 |
| 2017 | 304 |
| 2018 | 329 |
| 2019 | 305 |
| 2020 | 397 |
| 2021 | 401 |
| 2022 | 393 |
| 2023 | 92 |