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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1823 | 1 |
| 1836 | 1 |
| 1842 | 1 |
| 1843 | 1 |
| 1854 | 2 |
| 1881 | 3 |
| 1883 | 1 |
| 1884 | 1 |
| 1887 | 1 |
| 1889 | 1 |
| 1897 | 1 |
| 1899 | 1 |
| 1900 | 2 |
| 1904 | 1 |
| 1906 | 1 |
| 1909 | 1 |
| 1910 | 2 |
| 1921 | 1 |
| 1925 | 1 |
| 1927 | 1 |
| 1928 | 2 |
| 1929 | 1 |
| 1930 | 1 |
| 1931 | 1 |
| 1933 | 1 |
| 1935 | 1 |
| 1938 | 2 |
| 1939 | 9 |
| 1940 | 2 |
| 1942 | 2 |
| 1943 | 5 |
| 1944 | 4 |
| 1945 | 21 |
| 1946 | 32 |
| 1947 | 45 |
| 1948 | 37 |
| 1949 | 35 |
| 1950 | 68 |
| 1951 | 86 |
| 1952 | 104 |
| 1953 | 81 |
| 1954 | 79 |
| 1955 | 110 |
| 1956 | 122 |
| 1957 | 119 |
| 1958 | 107 |
| 1959 | 75 |
| 1960 | 82 |
| 1961 | 120 |
| 1962 | 127 |
| 1963 | 158 |
| 1964 | 171 |
| 1965 | 165 |
| 1966 | 170 |
| 1967 | 243 |
| 1968 | 264 |
| 1969 | 275 |
| 1970 | 270 |
| 1971 | 301 |
| 1972 | 316 |
| 1973 | 326 |
| 1974 | 352 |
| 1975 | 367 |
| 1976 | 364 |
| 1977 | 380 |
| 1978 | 382 |
| 1979 | 366 |
| 1980 | 402 |
| 1981 | 406 |
| 1982 | 411 |
| 1983 | 397 |
| 1984 | 433 |
| 1985 | 542 |
| 1986 | 493 |
| 1987 | 598 |
| 1988 | 677 |
| 1989 | 706 |
| 1990 | 777 |
| 1991 | 890 |
| 1992 | 939 |
| 1993 | 875 |
| 1994 | 908 |
| 1995 | 830 |
| 1996 | 848 |
| 1997 | 865 |
| 1998 | 941 |
| 1999 | 943 |
| 2000 | 1020 |
| 2001 | 1072 |
| 2002 | 1161 |
| 2003 | 1227 |
| 2004 | 1307 |
| 2005 | 1384 |
| 2006 | 1454 |
| 2007 | 1556 |
| 2008 | 1786 |
| 2009 | 1765 |
| 2010 | 1837 |
| 2011 | 2078 |
| 2012 | 2201 |
| 2013 | 2309 |
| 2014 | 2432 |
| 2015 | 2689 |
| 2016 | 2657 |
| 2017 | 2756 |
| 2018 | 2764 |
| 2019 | 2814 |
| 2020 | 3327 |
| 2021 | 3591 |
| 2022 | 3361 |
| 2023 | 3091 |
| 2024 | 1151 |