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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 2 |
| 1975 | 2 |
| 1978 | 1 |
| 1979 | 2 |
| 1980 | 2 |
| 1984 | 1 |
| 1986 | 1 |
| 1987 | 1 |
| 1992 | 1 |
| 1996 | 3 |
| 1997 | 1 |
| 1998 | 4 |
| 1999 | 5 |
| 2000 | 6 |
| 2001 | 5 |
| 2002 | 10 |
| 2003 | 10 |
| 2004 | 7 |
| 2005 | 12 |
| 2006 | 21 |
| 2007 | 17 |
| 2008 | 20 |
| 2009 | 36 |
| 2010 | 40 |
| 2011 | 29 |
| 2012 | 41 |
| 2013 | 61 |
| 2014 | 57 |
| 2015 | 64 |
| 2016 | 71 |
| 2017 | 73 |
| 2018 | 78 |
| 2019 | 86 |
| 2020 | 89 |
| 2021 | 80 |
| 2022 | 104 |
| 2023 | 84 |