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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1956 | 1 |
| 1960 | 1 |
| 1970 | 1 |
| 1971 | 2 |
| 1977 | 1 |
| 1980 | 1 |
| 1982 | 2 |
| 1987 | 2 |
| 1999 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2004 | 1 |
| 2005 | 2 |
| 2006 | 2 |
| 2008 | 3 |
| 2009 | 2 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 2 |
| 2014 | 1 |
| 2015 | 3 |
| 2017 | 1 |
| 2025 | 0 |