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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1790 | 1 |
| 1793 | 1 |
| 1811 | 1 |
| 1947 | 2 |
| 1948 | 2 |
| 1949 | 2 |
| 1950 | 2 |
| 1951 | 2 |
| 1952 | 2 |
| 1953 | 2 |
| 1954 | 4 |
| 1955 | 1 |
| 1957 | 1 |
| 1958 | 4 |
| 1959 | 3 |
| 1960 | 1 |
| 1961 | 4 |
| 1962 | 7 |
| 1963 | 3 |
| 1964 | 2 |
| 1965 | 3 |
| 1967 | 4 |
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 8 |
| 1971 | 2 |
| 1972 | 2 |
| 1973 | 13 |
| 1974 | 5 |
| 1975 | 3 |
| 1976 | 9 |
| 1977 | 6 |
| 1978 | 4 |
| 1979 | 8 |
| 1980 | 5 |
| 1981 | 13 |
| 1982 | 13 |
| 1983 | 8 |
| 1984 | 9 |
| 1985 | 32 |
| 1986 | 33 |
| 1987 | 34 |
| 1988 | 27 |
| 1989 | 32 |
| 1990 | 32 |
| 1991 | 38 |
| 1992 | 41 |
| 1993 | 56 |
| 1994 | 51 |
| 1995 | 84 |
| 1996 | 92 |
| 1997 | 104 |
| 1998 | 147 |
| 1999 | 131 |
| 2000 | 201 |
| 2001 | 266 |
| 2002 | 308 |
| 2003 | 362 |
| 2004 | 472 |
| 2005 | 568 |
| 2006 | 610 |
| 2007 | 737 |
| 2008 | 866 |
| 2009 | 1007 |
| 2010 | 1328 |
| 2011 | 1496 |
| 2012 | 1729 |
| 2013 | 1840 |
| 2014 | 1900 |
| 2015 | 2029 |
| 2016 | 2092 |
| 2017 | 2059 |
| 2018 | 2009 |
| 2019 | 2148 |
| 2020 | 2390 |
| 2021 | 2550 |
| 2022 | 2501 |
| 2023 | 1736 |