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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1866 | 1 |
| 1887 | 1 |
| 1917 | 1 |
| 1922 | 1 |
| 1927 | 3 |
| 1930 | 2 |
| 1931 | 1 |
| 1932 | 1 |
| 1935 | 1 |
| 1939 | 1 |
| 1941 | 1 |
| 1942 | 2 |
| 1945 | 2 |
| 1946 | 1 |
| 1947 | 2 |
| 1948 | 1 |
| 1949 | 1 |
| 1950 | 1 |
| 1951 | 2 |
| 1952 | 2 |
| 1953 | 1 |
| 1954 | 3 |
| 1955 | 4 |
| 1956 | 3 |
| 1957 | 6 |
| 1958 | 2 |
| 1959 | 6 |
| 1960 | 3 |
| 1961 | 2 |
| 1962 | 4 |
| 1963 | 5 |
| 1964 | 4 |
| 1965 | 20 |
| 1966 | 12 |
| 1967 | 25 |
| 1968 | 23 |
| 1969 | 13 |
| 1970 | 18 |
| 1971 | 18 |
| 1972 | 21 |
| 1973 | 18 |
| 1974 | 14 |
| 1975 | 23 |
| 1976 | 31 |
| 1977 | 26 |
| 1978 | 25 |
| 1979 | 32 |
| 1980 | 25 |
| 1981 | 31 |
| 1982 | 29 |
| 1983 | 27 |
| 1984 | 36 |
| 1985 | 31 |
| 1986 | 35 |
| 1987 | 48 |
| 1988 | 62 |
| 1989 | 48 |
| 1990 | 70 |
| 1991 | 64 |
| 1992 | 54 |
| 1993 | 63 |
| 1994 | 71 |
| 1995 | 86 |
| 1996 | 86 |
| 1997 | 92 |
| 1998 | 79 |
| 1999 | 113 |
| 2000 | 128 |
| 2001 | 142 |
| 2002 | 158 |
| 2003 | 191 |
| 2004 | 192 |
| 2005 | 213 |
| 2006 | 236 |
| 2007 | 292 |
| 2008 | 334 |
| 2009 | 381 |
| 2010 | 447 |
| 2011 | 516 |
| 2012 | 540 |
| 2013 | 586 |
| 2014 | 652 |
| 2015 | 700 |
| 2016 | 797 |
| 2017 | 794 |
| 2018 | 828 |
| 2019 | 911 |
| 2020 | 1200 |
| 2021 | 1296 |
| 2022 | 1377 |
| 2023 | 624 |