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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1858 | 1 |
| 1910 | 1 |
| 1946 | 1 |
| 1947 | 2 |
| 1951 | 1 |
| 1952 | 1 |
| 1956 | 1 |
| 1958 | 1 |
| 1959 | 1 |
| 1960 | 1 |
| 1962 | 3 |
| 1963 | 10 |
| 1964 | 16 |
| 1965 | 5 |
| 1966 | 3 |
| 1973 | 1 |
| 1984 | 2 |
| 1990 | 1 |
| 1991 | 1 |
| 1994 | 3 |
| 1996 | 1 |
| 1997 | 3 |
| 1998 | 3 |
| 1999 | 2 |
| 2002 | 3 |
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 5 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2015 | 1 |
| 2019 | 1 |
| 2021 | 2 |
| 2024 | 0 |