1500	1600	1700	1800	1900	1950	2000
1501 1502 1532 1538 1554 1555 1556 1560 1563 1580 1593	1608 1617 1623 1624 1625 1626 1632 1640 1653 1659 1660 1666 1668	1710 1750 1752 1758 1763 1768 1772 1780 1796	1802 1808 1809 1822 1835 1838 1839 1849 1855 1858 1860 1863 1865 1868 1871 1876 1879 1881 1884 1886 1889	1906 1911 1913 1914 1920 1924 1925 1926 1927 1928 1930 1931 1932 1934 1935 1936 1937 1938 1939 1940 1941 1945 1946 1947 1948 1949	1950 1951 1952 1955 1959 1963 1966 1967 1968 1969 1970 1971 1972 1973 1976 1977 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1991 1993 1994 1995 1997 1998 1999	2001 2002 2003