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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1821 | 2 |
| 1834 | 1 |
| 1837 | 1 |
| 1839 | 1 |
| 1851 | 2 |
| 1951 | 1 |
| 1953 | 3 |
| 1955 | 1 |
| 1956 | 3 |
| 1958 | 1 |
| 1961 | 1 |
| 1970 | 2 |
| 1971 | 1 |
| 1973 | 1 |
| 1977 | 1 |
| 1978 | 2 |
| 1984 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 3 |
| 1988 | 2 |
| 1991 | 1 |
| 1992 | 3 |
| 1993 | 4 |
| 1994 | 4 |
| 1995 | 2 |
| 1996 | 5 |
| 1997 | 1 |
| 2000 | 2 |
| 2002 | 2 |
| 2004 | 3 |
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2009 | 3 |
| 2010 | 3 |
| 2011 | 3 |
| 2012 | 2 |
| 2014 | 2 |
| 2016 | 1 |
| 2025 | 0 |