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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1879 | 1 |
| 1915 | 6 |
| 1916 | 2 |
| 1918 | 1 |
| 1919 | 4 |
| 1920 | 7 |
| 1921 | 8 |
| 1922 | 1 |
| 1923 | 7 |
| 1924 | 3 |
| 1925 | 7 |
| 1926 | 11 |
| 1927 | 6 |
| 1928 | 3 |
| 1930 | 5 |
| 1931 | 2 |
| 1934 | 3 |
| 1936 | 6 |
| 1938 | 1 |
| 1939 | 1 |
| 1945 | 3 |
| 1948 | 3 |
| 1949 | 1 |
| 1950 | 2 |
| 1953 | 1 |
| 1954 | 1 |
| 1960 | 5 |
| 1962 | 1 |
| 1964 | 2 |
| 1965 | 4 |
| 1966 | 2 |
| 1967 | 3 |
| 1968 | 4 |
| 1969 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 3 |
| 1974 | 4 |
| 1981 | 3 |
| 1983 | 2 |
| 1984 | 3 |
| 1985 | 6 |
| 1986 | 5 |
| 1987 | 4 |
| 1988 | 1 |
| 1989 | 4 |
| 1990 | 4 |
| 1991 | 7 |
| 1992 | 3 |
| 1993 | 7 |
| 1994 | 11 |
| 1995 | 6 |
| 1996 | 5 |
| 1997 | 7 |
| 1998 | 6 |
| 1999 | 18 |
| 2000 | 11 |
| 2001 | 21 |
| 2002 | 26 |
| 2003 | 29 |
| 2004 | 25 |
| 2005 | 17 |
| 2006 | 19 |
| 2007 | 23 |
| 2008 | 32 |
| 2009 | 27 |
| 2010 | 20 |
| 2011 | 29 |
| 2012 | 40 |
| 2013 | 60 |
| 2014 | 28 |
| 2015 | 37 |
| 2016 | 71 |
| 2017 | 69 |
| 2018 | 19 |
| 2019 | 20 |
| 2020 | 36 |
| 2021 | 26 |
| 2022 | 22 |
| 2023 | 5 |