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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1960 | 1 |
| 1966 | 1 |
| 1968 | 1 |
| 1970 | 1 |
| 1974 | 1 |
| 1976 | 3 |
| 1977 | 1 |
| 1982 | 3 |
| 1984 | 2 |
| 1990 | 1 |
| 1991 | 1 |
| 1992 | 2 |
| 1994 | 1 |
| 1995 | 1 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 1 |
| 2000 | 2 |
| 2002 | 2 |
| 2003 | 8 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 2 |
| 2007 | 2 |
| 2008 | 28 |
| 2009 | 18 |
| 2010 | 30 |
| 2011 | 41 |
| 2012 | 43 |
| 2013 | 77 |
| 2014 | 75 |
| 2015 | 94 |
| 2016 | 113 |
| 2017 | 109 |
| 2018 | 113 |
| 2019 | 104 |
| 2020 | 138 |
| 2021 | 117 |
| 2022 | 99 |
| 2023 | 83 |
| 2024 | 34 |