Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1829 | 1 |
| 1853 | 1 |
| 1854 | 1 |
| 1855 | 1 |
| 1856 | 2 |
| 1858 | 1 |
| 1860 | 1 |
| 1867 | 1 |
| 1868 | 1 |
| 1869 | 1 |
| 1878 | 2 |
| 1879 | 1 |
| 1880 | 3 |
| 1882 | 1 |
| 1885 | 1 |
| 1886 | 2 |
| 1887 | 1 |
| 1888 | 1 |
| 1891 | 1 |
| 1895 | 1 |
| 1900 | 1 |
| 1905 | 3 |
| 1906 | 3 |
| 1907 | 2 |
| 1908 | 4 |
| 1909 | 1 |
| 1910 | 2 |
| 1911 | 2 |
| 1912 | 1 |
| 1915 | 3 |
| 1916 | 1 |
| 1922 | 1 |
| 1923 | 2 |
| 1924 | 2 |
| 1926 | 5 |
| 1927 | 2 |
| 1928 | 4 |
| 1929 | 4 |
| 1930 | 4 |
| 1931 | 1 |
| 1933 | 2 |
| 1934 | 1 |
| 1935 | 5 |
| 1936 | 3 |
| 1937 | 3 |
| 1938 | 4 |
| 1939 | 2 |
| 1940 | 2 |
| 1941 | 5 |
| 1942 | 3 |
| 1943 | 4 |
| 1944 | 4 |
| 1945 | 5 |
| 1946 | 29 |
| 1947 | 29 |
| 1948 | 37 |
| 1949 | 49 |
| 1950 | 45 |
| 1951 | 44 |
| 1952 | 49 |
| 1953 | 43 |
| 1954 | 31 |
| 1955 | 33 |
| 1956 | 34 |
| 1957 | 49 |
| 1958 | 62 |
| 1959 | 54 |
| 1960 | 53 |
| 1961 | 60 |
| 1962 | 42 |
| 1963 | 53 |
| 1964 | 84 |
| 1965 | 110 |
| 1966 | 89 |
| 1967 | 95 |
| 1968 | 85 |
| 1969 | 101 |
| 1970 | 106 |
| 1971 | 125 |
| 1972 | 132 |
| 1973 | 136 |
| 1974 | 126 |
| 1975 | 183 |
| 1976 | 148 |
| 1977 | 176 |
| 1978 | 173 |
| 1979 | 173 |
| 1980 | 186 |
| 1981 | 210 |
| 1982 | 205 |
| 1983 | 201 |
| 1984 | 217 |
| 1985 | 242 |
| 1986 | 263 |
| 1987 | 240 |
| 1988 | 241 |
| 1989 | 247 |
| 1990 | 245 |
| 1991 | 260 |
| 1992 | 269 |
| 1993 | 276 |
| 1994 | 282 |
| 1995 | 285 |
| 1996 | 305 |
| 1997 | 297 |
| 1998 | 280 |
| 1999 | 322 |
| 2000 | 309 |
| 2001 | 347 |
| 2002 | 307 |
| 2003 | 333 |
| 2004 | 335 |
| 2005 | 389 |
| 2006 | 458 |
| 2007 | 480 |
| 2008 | 428 |
| 2009 | 443 |
| 2010 | 443 |
| 2011 | 486 |
| 2012 | 513 |
| 2013 | 532 |
| 2014 | 570 |
| 2015 | 643 |
| 2016 | 615 |
| 2017 | 626 |
| 2018 | 737 |
| 2019 | 664 |
| 2020 | 726 |
| 2021 | 843 |
| 2022 | 341 |
