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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1869 | 2 |
| 1872 | 2 |
| 1873 | 3 |
| 1878 | 2 |
| 1879 | 1 |
| 1880 | 1 |
| 1885 | 4 |
| 1888 | 6 |
| 1892 | 1 |
| 1893 | 1 |
| 1898 | 1 |
| 1985 | 1 |
| 1986 | 4 |
| 1988 | 3 |
| 1989 | 2 |
| 1990 | 1 |
| 1991 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 2005 | 2 |
| 2006 | 1 |
| 2007 | 1 |
| 2009 | 3 |
| 2010 | 6 |
| 2011 | 4 |
| 2012 | 8 |
| 2013 | 5 |
| 2014 | 8 |
| 2015 | 13 |
| 2016 | 4 |
| 2017 | 24 |
| 2018 | 17 |
| 2019 | 23 |
| 2020 | 26 |
| 2021 | 16 |
| 2022 | 14 |
| 2023 | 14 |
| 2024 | 12 |
| 2025 | 13 |