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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 1 |
| 1977 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1988 | 1 |
| 1989 | 5 |
| 1990 | 1 |
| 1991 | 7 |
| 1992 | 7 |
| 1993 | 5 |
| 1994 | 6 |
| 1995 | 8 |
| 1996 | 7 |
| 1997 | 8 |
| 1998 | 6 |
| 1999 | 6 |
| 2000 | 7 |
| 2001 | 5 |
| 2002 | 8 |
| 2003 | 5 |
| 2004 | 5 |
| 2005 | 8 |
| 2006 | 10 |
| 2007 | 23 |
| 2008 | 21 |
| 2009 | 23 |
| 2010 | 38 |
| 2011 | 45 |
| 2012 | 47 |
| 2013 | 50 |
| 2014 | 65 |
| 2015 | 64 |
| 2016 | 60 |
| 2017 | 70 |
| 2018 | 72 |
| 2019 | 71 |
| 2020 | 107 |
| 2021 | 101 |
| 2022 | 110 |
| 2023 | 90 |
| 2024 | 2 |