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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1859 | 1 |
| 1884 | 1 |
| 1905 | 1 |
| 1914 | 1 |
| 1926 | 1 |
| 1929 | 1 |
| 1930 | 1 |
| 1942 | 1 |
| 1949 | 1 |
| 1952 | 1 |
| 1960 | 1 |
| 1964 | 1 |
| 1967 | 1 |
| 1968 | 1 |
| 1973 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1986 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1989 | 3 |
| 1992 | 1 |
| 1993 | 2 |
| 1994 | 1 |
| 1997 | 1 |
| 1999 | 1 |
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 2 |
| 2003 | 3 |
| 2005 | 3 |
| 2006 | 5 |
| 2007 | 3 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 4 |
| 2013 | 8 |
| 2014 | 4 |
| 2015 | 8 |
| 2016 | 12 |
| 2017 | 19 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 4 |
| 2023 | 3 |
| 2025 | 0 |