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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1819 | 3 |
| 1846 | 1 |
| 1852 | 2 |
| 1855 | 1 |
| 1867 | 1 |
| 1874 | 2 |
| 1875 | 1 |
| 1876 | 2 |
| 1877 | 1 |
| 1878 | 2 |
| 1879 | 2 |
| 1880 | 1 |
| 1881 | 5 |
| 1882 | 3 |
| 1883 | 1 |
| 1885 | 3 |
| 1886 | 1 |
| 1887 | 2 |
| 1888 | 1 |
| 1889 | 2 |
| 1890 | 2 |
| 1892 | 2 |
| 1893 | 1 |
| 1894 | 4 |
| 1895 | 3 |
| 1896 | 3 |
| 1897 | 3 |
| 1898 | 2 |
| 1899 | 3 |
| 1900 | 3 |
| 1901 | 1 |
| 1902 | 3 |
| 1903 | 1 |
| 1905 | 2 |
| 1906 | 1 |
| 1907 | 6 |
| 1908 | 1 |
| 1909 | 3 |
| 1910 | 4 |
| 1911 | 7 |
| 1913 | 4 |
| 1914 | 4 |
| 1915 | 2 |
| 1916 | 3 |
| 1917 | 6 |
| 1918 | 2 |
| 1919 | 1 |
| 1920 | 2 |
| 1922 | 5 |
| 1923 | 1 |
| 1927 | 3 |
| 1928 | 1 |
| 1929 | 1 |
| 1930 | 1 |
| 1931 | 1 |
| 1932 | 10 |
| 1933 | 8 |
| 1934 | 8 |
| 1935 | 4 |
| 1936 | 5 |
| 1937 | 8 |
| 1938 | 2 |
| 1939 | 2 |
| 1940 | 2 |
| 1941 | 1 |
| 1943 | 1 |
| 1944 | 2 |
| 1945 | 11 |
| 1946 | 10 |
| 1947 | 20 |
| 1948 | 21 |
| 1949 | 21 |
| 1950 | 26 |
| 1951 | 29 |
| 1952 | 23 |
| 1953 | 32 |
| 1954 | 21 |
| 1955 | 26 |
| 1956 | 22 |
| 1957 | 41 |
| 1958 | 32 |
| 1959 | 53 |
| 1960 | 44 |
| 1961 | 49 |
| 1962 | 58 |
| 1963 | 60 |
| 1964 | 96 |
| 1965 | 94 |
| 1966 | 104 |
| 1967 | 141 |
| 1968 | 166 |
| 1969 | 164 |
| 1970 | 155 |
| 1971 | 225 |
| 1972 | 227 |
| 1973 | 234 |
| 1974 | 249 |
| 1975 | 267 |
| 1976 | 264 |
| 1977 | 282 |
| 1978 | 272 |
| 1979 | 245 |
| 1980 | 323 |
| 1981 | 342 |
| 1982 | 357 |
| 1983 | 429 |
| 1984 | 493 |
| 1985 | 487 |
| 1986 | 505 |
| 1987 | 477 |
| 1988 | 489 |
| 1989 | 455 |
| 1990 | 521 |
| 1991 | 537 |
| 1992 | 595 |
| 1993 | 673 |
| 1994 | 673 |
| 1995 | 712 |
| 1996 | 811 |
| 1997 | 759 |
| 1998 | 862 |
| 1999 | 1066 |
| 2000 | 1248 |
| 2001 | 1254 |
| 2002 | 1310 |
| 2003 | 1361 |
| 2004 | 1377 |
| 2005 | 1544 |
| 2006 | 1638 |
| 2007 | 1608 |
| 2008 | 1544 |
| 2009 | 1501 |
| 2010 | 1478 |
| 2011 | 1500 |
| 2012 | 1474 |
| 2013 | 1523 |
| 2014 | 1544 |
| 2015 | 1465 |
| 2016 | 1454 |
| 2017 | 1469 |
| 2018 | 1497 |
| 2019 | 1440 |
| 2020 | 1562 |
| 2021 | 1611 |
| 2022 | 1282 |
| 2023 | 1221 |
| 2024 | 481 |