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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1890 | 2 |
| 1905 | 2 |
| 1906 | 2 |
| 1907 | 2 |
| 1908 | 2 |
| 1910 | 2 |
| 1913 | 1 |
| 1916 | 2 |
| 1917 | 1 |
| 1919 | 1 |
| 1929 | 1 |
| 1930 | 1 |
| 1936 | 1 |
| 1949 | 2 |
| 1952 | 1 |
| 1954 | 2 |
| 1955 | 1 |
| 1957 | 2 |
| 1958 | 1 |
| 1959 | 1 |
| 1961 | 2 |
| 1963 | 2 |
| 1964 | 4 |
| 1965 | 6 |
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 2 |
| 1969 | 3 |
| 1971 | 2 |
| 1972 | 2 |
| 1973 | 2 |
| 1974 | 1 |
| 1976 | 2 |
| 1977 | 1 |
| 1978 | 2 |
| 1980 | 4 |
| 1981 | 2 |
| 1983 | 2 |
| 1984 | 3 |
| 1985 | 4 |
| 1986 | 1 |
| 1987 | 1 |
| 1989 | 1 |
| 1990 | 2 |
| 2002 | 1 |
| 2008 | 1 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 2 |
| 2013 | 1 |
| 2014 | 3 |
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 3 |
| 2023 | 1 |