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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 2 |
| 1968 | 2 |
| 1969 | 1 |
| 1971 | 2 |
| 1973 | 2 |
| 1975 | 6 |
| 1977 | 4 |
| 1979 | 1 |
| 1984 | 1 |
| 1988 | 2 |
| 1993 | 3 |
| 1994 | 2 |
| 1995 | 1 |
| 1996 | 1 |
| 1998 | 3 |
| 1999 | 2 |
| 2002 | 1 |
| 2005 | 1 |
| 2006 | 2 |
| 2011 | 2 |
| 2013 | 1 |
| 2014 | 1 |
| 2017 | 1 |
| 2019 | 1 |
| 2024 | 0 |