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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1849 | 1 |
| 1858 | 1 |
| 1904 | 1 |
| 1907 | 1 |
| 1908 | 2 |
| 1909 | 2 |
| 1911 | 1 |
| 1914 | 1 |
| 1916 | 1 |
| 1917 | 1 |
| 1918 | 6 |
| 1919 | 2 |
| 1920 | 3 |
| 1921 | 1 |
| 1922 | 1 |
| 1923 | 1 |
| 1925 | 4 |
| 1926 | 3 |
| 1927 | 2 |
| 1928 | 3 |
| 1929 | 4 |
| 1930 | 2 |
| 1931 | 3 |
| 1932 | 5 |
| 1933 | 3 |
| 1934 | 2 |
| 1935 | 4 |
| 1936 | 4 |
| 1937 | 3 |
| 1938 | 1 |
| 1939 | 1 |
| 1940 | 3 |
| 1941 | 2 |
| 1942 | 4 |
| 1943 | 2 |
| 1944 | 1 |
| 1945 | 7 |
| 1946 | 16 |
| 1947 | 20 |
| 1948 | 22 |
| 1949 | 19 |
| 1950 | 25 |
| 1951 | 32 |
| 1952 | 25 |
| 1953 | 32 |
| 1954 | 31 |
| 1955 | 26 |
| 1956 | 29 |
| 1957 | 17 |
| 1958 | 25 |
| 1959 | 28 |
| 1960 | 39 |
| 1961 | 36 |
| 1962 | 37 |
| 1963 | 70 |
| 1964 | 108 |
| 1965 | 90 |
| 1966 | 108 |
| 1967 | 171 |
| 1968 | 215 |
| 1969 | 264 |
| 1970 | 281 |
| 1971 | 305 |
| 1972 | 342 |
| 1973 | 253 |
| 1974 | 238 |
| 1975 | 324 |
| 1976 | 270 |
| 1977 | 245 |
| 1978 | 221 |
| 1979 | 240 |
| 1980 | 244 |
| 1981 | 262 |
| 1982 | 242 |
| 1983 | 300 |
| 1984 | 312 |
| 1985 | 291 |
| 1986 | 316 |
| 1987 | 333 |
| 1988 | 314 |
| 1989 | 360 |
| 1990 | 333 |
| 1991 | 373 |
| 1992 | 360 |
| 1993 | 337 |
| 1994 | 352 |
| 1995 | 322 |
| 1996 | 364 |
| 1997 | 370 |
| 1998 | 333 |
| 1999 | 339 |
| 2000 | 488 |
| 2001 | 507 |
| 2002 | 570 |
| 2003 | 608 |
| 2004 | 651 |
| 2005 | 767 |
| 2006 | 819 |
| 2007 | 902 |
| 2008 | 882 |
| 2009 | 909 |
| 2010 | 1014 |
| 2011 | 1024 |
| 2012 | 1143 |
| 2013 | 1117 |
| 2014 | 1134 |
| 2015 | 1094 |
| 2016 | 1088 |
| 2017 | 1071 |
| 2018 | 1157 |
| 2019 | 1193 |
| 2020 | 1200 |
| 2021 | 1226 |
| 2022 | 1200 |
| 2023 | 1093 |
| 2024 | 1156 |
| 2025 | 109 |