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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
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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