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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1972 | 2 |
| 1974 | 4 |
| 1975 | 4 |
| 1976 | 4 |
| 1977 | 3 |
| 1978 | 9 |
| 1979 | 3 |
| 1980 | 2 |
| 1981 | 5 |
| 1982 | 1 |
| 1983 | 4 |
| 1984 | 6 |
| 1985 | 6 |
| 1986 | 5 |
| 1987 | 14 |
| 1988 | 4 |
| 1989 | 7 |
| 1990 | 17 |
| 1991 | 12 |
| 1992 | 14 |
| 1993 | 10 |
| 1994 | 15 |
| 1995 | 24 |
| 1996 | 27 |
| 1997 | 28 |
| 1998 | 43 |
| 1999 | 28 |
| 2000 | 51 |
| 2001 | 54 |
| 2002 | 68 |
| 2003 | 82 |
| 2004 | 105 |
| 2005 | 121 |
| 2006 | 154 |
| 2007 | 128 |
| 2008 | 168 |
| 2009 | 227 |
| 2010 | 266 |
| 2011 | 303 |
| 2012 | 376 |
| 2013 | 397 |
| 2014 | 457 |
| 2015 | 514 |
| 2016 | 470 |
| 2017 | 537 |
| 2018 | 663 |
| 2019 | 808 |
| 2020 | 968 |
| 2021 | 1099 |
| 2022 | 1272 |
| 2023 | 12 |