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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1844 | 1 |
| 1892 | 1 |
| 1907 | 1 |
| 1921 | 1 |
| 1929 | 1 |
| 1945 | 1 |
| 1946 | 9 |
| 1947 | 9 |
| 1948 | 15 |
| 1949 | 22 |
| 1950 | 20 |
| 1951 | 27 |
| 1952 | 30 |
| 1953 | 19 |
| 1954 | 22 |
| 1955 | 26 |
| 1956 | 32 |
| 1957 | 37 |
| 1958 | 15 |
| 1959 | 25 |
| 1960 | 10 |
| 1961 | 15 |
| 1962 | 7 |
| 1963 | 13 |
| 1964 | 16 |
| 1965 | 11 |
| 1966 | 9 |
| 1967 | 20 |
| 1968 | 24 |
| 1969 | 22 |
| 1970 | 23 |
| 1971 | 28 |
| 1972 | 26 |
| 1973 | 25 |
| 1974 | 28 |
| 1975 | 31 |
| 1976 | 38 |
| 1977 | 50 |
| 1978 | 32 |
| 1979 | 40 |
| 1980 | 35 |
| 1981 | 31 |
| 1982 | 43 |
| 1983 | 34 |
| 1984 | 14 |
| 1985 | 45 |
| 1986 | 47 |
| 1987 | 49 |
| 1988 | 47 |
| 1989 | 38 |
| 1990 | 45 |
| 1991 | 53 |
| 1992 | 44 |
| 1993 | 42 |
| 1994 | 50 |
| 1995 | 65 |
| 1996 | 52 |
| 1997 | 69 |
| 1998 | 84 |
| 1999 | 60 |
| 2000 | 87 |
| 2001 | 87 |
| 2002 | 106 |
| 2003 | 102 |
| 2004 | 118 |
| 2005 | 135 |
| 2006 | 129 |
| 2007 | 135 |
| 2008 | 146 |
| 2009 | 184 |
| 2010 | 217 |
| 2011 | 234 |
| 2012 | 296 |
| 2013 | 300 |
| 2014 | 304 |
| 2015 | 346 |
| 2016 | 340 |
| 2017 | 340 |
| 2018 | 344 |
| 2019 | 353 |
| 2020 | 375 |
| 2021 | 444 |
| 2022 | 368 |
| 2023 | 384 |
| 2024 | 361 |
| 2025 | 284 |