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Table A.1
Annual numbers of sunspot groups: the mean, lower and upper 68% quantiles, as shown in Fig. 7.
Year | G | G low | G up | Year | G | G low | G up | Year | G | G low | G up | Year | G | G low | G up | Year | G | G low | G up |
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1749 | 7.88 | 7.25 | 8.51 | 1800 | 2.25 | 2.58 | 2.92 | 1851 | 5.4 | 5.29 | 5.51 | 1901 | 0.38 | 0.35 | 0.42 | 1951 | 4.97 | 4.89 | 5.05 |
1750 | 7.75 | 6.98 | 8.53 | 1801 | 4.53 | 4.64 | 4.75 | 1852 | 4.45 | 4.34 | 4.56 | 1902 | 0.59 | 0.54 | 0.63 | 1952 | 2.58 | 2.53 | 2.64 |
1751 | 4.75 | 4.26 | 5.25 | 1802 | 3.65 | 3.82 | 3.99 | 1853 | 3.43 | 3.34 | 3.51 | 1903 | 2.31 | 2.24 | 2.37 | 1953 | 1.27 | 1.23 | 1.32 |
1752 | 4.62 | 3.97 | 5.26 | 1803 | 2.38 | 2.52 | 2.65 | 1854 | 1.7 | 1.63 | 1.77 | 1904 | 4.03 | 3.95 | 4.10 | 1954 | 0.60 | 0.56 | 0.63 |
1753 | 2.52 | 1.45 | 3.6 | 1804 | 2.37 | 2.52 | 2.68 | 1855 | 0.73 | 0.68 | 0.77 | 1905 | 5.34 | 5.25 | 5.44 | 1955 | 3.25 | 3.19 | 3.31 |
1754 | 1.19 | 1.06 | 1.31 | 1805 | 2.62 | 2.80 | 2.97 | 1856 | 0.42 | 0.39 | 0.46 | 1906 | 4.91 | 4.82 | 5.00 | 1956 | 10.13 | 10.04 | 10.23 |
1755 | 0.71 | 0.63 | 0.78 | 1806 | 1.30 | 1.55 | 1.79 | 1857 | 1.7 | 1.64 | 1.75 | 1907 | 5.48 | 5.39 | 5.57 | 1957 | 12.90 | 12.80 | 13.01 |
1756 | 1.03 | 0.93 | 1.13 | 1807 | 2.65 | 3.25 | 3.82 | 1858 | 3.96 | 3.88 | 4.04 | 1908 | 4.72 | 4.64 | 4.81 | 1958 | 13.36 | 13.26 | 13.47 |
1757 | 2.01 | 1.82 | 2.2 | 1808 | 1.09 | 1.55 | 2.01 | 1859 | 6.44 | 6.34 | 6.54 | 1909 | 4.13 | 4.05 | 4.21 | 1959 | 11.68 | 11.57 | 11.79 |
1758 | 3.72 | 2.99 | 4.46 | 1809 | 0.77 | 0.98 | 1.19 | 1860 | 7.76 | 7.63 | 7.9 | 1910 | 1.95 | 1.89 | 2.00 | 1960 | 8.36 | 8.27 | 8.45 |
1759 | 5.95 | 4.44 | 7.42 | 1810 | 0.10 | 0.40 | 0.70 | 1861 | 6.59 | 6.46 | 6.72 | 1911 | 0.78 | 0.74 | 0.81 | 1961 | 4.17 | 4.10 | 4.24 |
1760 | 6.48 | 5.71 | 7.24 | 1811 | −99 | −99 | −99 | 1862 | 4.93 | 4.83 | 5.02 | 1912 | 0.40 | 0.37 | 0.42 | 1962 | 2.88 | 2.82 | 2.93 |
1761 | 7.61 | 7.29 | 7.94 | 1812 | 0.91 | 1.19 | 1.48 | 1863 | 3.94 | 3.83 | 4.04 | 1913 | 0.20 | 0.18 | 0.23 | 1963 | 2.31 | 2.25 | 2.36 |
1762 | 6.22 | 5.86 | 6.59 | 1813 | 1.73 | 2.06 | 2.40 | 1864 | 3.65 | 3.56 | 3.75 | 1914 | 1.06 | 1.02 | 1.10 | 1964 | 1.16 | 1.12 | 1.20 |
1763 | 4.64 | 4.24 | 5.04 | 1814 | 3.01 | 3.98 | 4.95 | 1865 | 2.33 | 2.26 | 2.4 | 1915 | 4.24 | 4.16 | 4.32 | 1965 | 1.42 | 1.37 | 1.46 |
1764 | 3.01 | 2.65 | 3.36 | 1815 | −99 | −99 | −99 | 1866 | 1.6 | 1.55 | 1.65 | 1916 | 5.64 | 5.56 | 5.73 | 1966 | 3.73 | 3.66 | 3.80 |
1765 | 0.99 | 0.62 | 1.36 | 1816 | 3.84 | 4.32 | 4.79 | 1867 | 1.05 | 1 | 1.1 | 1917 | 8.53 | 8.43 | 8.62 | 1967 | 7.98 | 7.87 | 8.09 |
1766 | 0.96 | 0.75 | 1.16 | 1817 | 3.76 | 4.07 | 4.36 | 1868 | 3.6 | 3.51 | 3.69 | 1918 | 7.15 | 7.05 | 7.24 | 1968 | 8.00 | 7.91 | 8.10 |
1767 | 3.27 | 3.08 | 3.45 | 1818 | 2.12 | 2.30 | 2.47 | 1869 | 6.79 | 6.67 | 6.9 | 1919 | 5.65 | 5.57 | 5.74 | 1969 | 8.05 | 7.95 | 8.15 |
1768 | 6.96 | 6.77 | 7.14 | 1819 | 2.17 | 2.38 | 2.60 | 1870 | 9.81 | 9.68 | 9.94 | 1920 | 3.48 | 3.42 | 3.55 | 1970 | 8.75 | 8.65 | 8.86 |
1769 | 9.31 | 9.03 | 9.6 | 1820 | 1.73 | 1.94 | 2.14 | 1871 | 8.78 | 8.65 | 8.91 | 1921 | 2.41 | 2.36 | 2.47 | 1971 | 6.00 | 5.91 | 6.08 |
1770 | 8.77 | 8.55 | 8.99 | 1821 | 3.06 | 3.65 | 4.24 | 1872 | 8.06 | 7.93 | 8.19 | 1922 | 1.42 | 1.39 | 1.45 | 1972 | 5.99 | 5.90 | 6.08 |
1771 | 7.89 | 7.61 | 8.18 | 1822 | 2.45 | 3.06 | 3.67 | 1873 | 5.49 | 5.38 | 5.6 | 1923 | 0.74 | 0.71 | 0.76 | 1973 | 3.43 | 3.36 | 3.49 |
1772 | 6.21 | 5.95 | 6.47 | 1823 | 1.12 | 1.38 | 1.65 | 1874 | 3.24 | 3.13 | 3.36 | 1924 | 1.52 | 1.48 | 1.55 | 1974 | 3.02 | 2.95 | 3.08 |
1773 | 3.44 | 3.27 | 3.61 | 1824 | 1.65 | 1.79 | 1.94 | 1875 | 1.66 | 1.59 | 1.72 | 1925 | 4.23 | 4.17 | 4.29 | 1975 | 1.46 | 1.41 | 1.51 |
1774 | 2.61 | 2.42 | 2.81 | 1825 | 1.9 | 1.82 | 1.98 | 1876 | 1.13 | 1.07 | 1.19 | 1926 | 5.84 | 5.80 | 5.89 | 1976 | 1.36 | 1.31 | 1.40 |
1775 | 1.28 | 1.17 | 1.39 | 1826 | 2.56 | 2.51 | 2.61 | 1877 | 1.09 | 1.04 | 1.14 | 1927 | 6.28 | 6.22 | 6.33 | 1977 | 2.64 | 2.58 | 2.70 |
1776 | 1.79 | 1.57 | 2.01 | 1827 | 3.67 | 3.62 | 3.72 | 1878 | 0.51 | 0.47 | 0.56 | 1928 | 6.81 | 6.75 | 6.86 | 1978 | 8.66 | 8.53 | 8.79 |
1777 | 8.41 | 7.01 | 9.84 | 1828 | 4.89 | 4.83 | 4.95 | 1879 | 0.64 | 0.6 | 0.69 | 1929 | 6.21 | 6.15 | 6.27 | 1979 | 12.70 | 12.56 | 12.84 |
1778 | 10.31 | 9.14 | 11.47 | 1829 | 4.87 | 4.81 | 4.94 | 1880 | 2.66 | 2.58 | 2.74 | 1930 | 3.69 | 3.65 | 3.73 | 1980 | 10.56 | 10.45 | 10.67 |
1779 | 11.17 | 10.02 | 12.3 | 1830 | 5.37 | 5.31 | 5.43 | 1881 | 4.38 | 4.28 | 4.49 | 1931 | 2.15 | 2.12 | 2.18 | 1981 | 10.50 | 10.38 | 10.62 |
1780 | 8.89 | 7.55 | 10.2 | 1831 | 3.64 | 3.59 | 3.7 | 1882 | 4.67 | 4.58 | 4.77 | 1932 | 1.29 | 1.26 | 1.32 | 1982 | 9.13 | 9.01 | 9.24 |
1781 | 7.05 | 5.95 | 8.16 | 1832 | 2.11 | 2.06 | 2.15 | 1883 | 5.16 | 5.05 | 5.27 | 1933 | 0.62 | 0.60 | 0.65 | 1983 | 5.70 | 5.61 | 5.79 |
1782 | 3 | 1.72 | 4.27 | 1833 | 0.6 | 0.57 | 0.63 | 1884 | 5.91 | 5.8 | 6.03 | 1934 | 0.91 | 0.89 | 0.93 | 1984 | 3.71 | 3.64 | 3.77 |
1783 | 2.25 | 1.25 | 3.23 | 1834 | 0.91 | 0.88 | 0.94 | 1885 | 4.54 | 4.44 | 4.64 | 1935 | 3.67 | 3.61 | 3.72 | 1985 | 1.45 | 1.40 | 1.50 |
1784 | 1.26 | 0.33 | 2.2 | 1835 | 3.77 | 3.7 | 3.85 | 1886 | 2.45 | 2.37 | 2.52 | 1936 | 7.52 | 7.44 | 7.60 | 1986 | 1.09 | 1.05 | 1.13 |
1785 | 1.84 | 1.21 | 2.47 | 1836 | 7.21 | 7.13 | 7.29 | 1887 | 1.48 | 1.42 | 1.54 | 1937 | 10.09 | 9.99 | 10.18 | 1987 | 2.22 | 2.17 | 2.28 |
1786 | 6.83 | 6 | 7.67 | 1837 | 7.85 | 7.77 | 7.93 | 1888 | 1.01 | 0.96 | 1.06 | 1938 | 9.48 | 9.37 | 9.58 | 1988 | 6.79 | 6.69 | 6.89 |
1787 | 9.61 | 8.77 | 10.45 | 1838 | 5.98 | 5.92 | 6.04 | 1889 | 0.77 | 0.72 | 0.81 | 1939 | 7.75 | 7.69 | 7.82 | 1989 | 11.45 | 11.32 | 11.58 |
1788 | 10.13 | 9.17 | 11.11 | 1839 | 5.04 | 4.98 | 5.1 | 1890 | 0.92 | 0.87 | 0.97 | 1940 | 5.98 | 5.92 | 6.05 | 1990 | 11.76 | 11.63 | 11.89 |
1789 | 8.92 | 7.47 | 10.38 | 1840 | 3.87 | 3.82 | 3.91 | 1891 | 3.66 | 3.57 | 3.75 | 1941 | 4.22 | 4.16 | 4.28 | 1991 | 11.39 | 11.26 | 11.52 |
1790 | 8.53 | 6.9 | 10.15 | 1841 | 2.33 | 2.28 | 2.37 | 1892 | 6.18 | 6.06 | 6.29 | 1942 | 2.86 | 2.82 | 2.90 | 1992 | 7.84 | 7.74 | 7.94 |
1791 | 5.84 | 4.83 | 6.83 | 1842 | 1.62 | 1.58 | 1.66 | 1893 | 7.74 | 7.61 | 7.87 | 1943 | 1.52 | 1.48 | 1.56 | 1993 | 4.53 | 4.47 | 4.59 |
1792 | 3.27 | 1.51 | 5.01 | 1843 | 0.76 | 0.72 | 0.79 | 1894 | 7.65 | 7.53 | 7.77 | 1944 | 1.22 | 1.17 | 1.27 | 1994 | 3.09 | 3.04 | 3.14 |
1793 | 1.97 | 0.36 | 3.59 | 1844 | 1 | 0.97 | 1.03 | 1895 | 6.2 | 6.1 | 6.3 | 1945 | 3.45 | 3.38 | 3.52 | 1995 | 1.78 | 1.73 | 1.83 |
1794 | 3.28 | 3.83 | 4.37 | 1845 | 2.49 | 2.44 | 2.53 | 1896 | 3.75 | 3.67 | 3.83 | 1946 | 8.15 | 8.07 | 8.23 | 1996 | 1.11 | 1.06 | 1.15 |
1795 | 1.14 | 1.86 | 2.58 | 1846 | 3.52 | 3.47 | 3.57 | 1897 | 2.99 | 2.91 | 3.06 | 1947 | 11.36 | 11.26 | 11.47 | – | – | – | – |
1796 | 0.22 | 1.77 | 3.24 | 1847 | 4.75 | 4.67 | 4.84 | 1898 | 2.62 | 2.55 | 2.7 | 1948 | 10.83 | 10.71 | 10.95 | – | – | – | – |
1797 | 0.70 | 1.34 | 1.98 | 1848 | 6.78 | 6.69 | 6.88 | 1899 | 1.46 | 1.4 | 1.52 | 1949 | 10.58 | 10.48 | 10.68 | – | – | – | – |
1798 | 0.38 | 0.94 | 1.51 | 1849 | 7.18 | 7.05 | 7.3 | 1900 | 1.18 | 1.12 | 1.24 | 1950 | 6.35 | 6.27 | 6.43 | – | – | – | – |
1799 | 0.60 | 0.96 | 1.32 | 1850 | 5.21 | 5.1 | 5.32 | 1901 | 0.38 | 0.35 | 0.42 |
Notes. Missing values are denoted by −99.
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