year_orig sunspots year sunspot 1700 5 1901 2.7 1701 11 1902 5 1702 16 1903 24.4 1703 23 1904 42 1704 36 1905 63.5 1705 58 1906 53.8 1706 29 1907 62 1707 20 1908 48.5 1708 10 1909 43.9 1709 8 1910 18.6 1710 3 1911 5.7 1711 0 1912 3.6 1712 0 1913 1.4 1713 2 1914 9.6 1714 11 1915 47.4 1715 27 1916 57.1 1716 47 1917 103.9 1717 63 1918 80.6 1718 60 1919 63.6 1719 39 1920 37.6 1720 28 1921 26.1 1721 26 1922 14.2 1722 22 1923 5.8 1723 11 1924 16.7 1724 21 1925 44.3 1725 40 1926 63.9 1726 78 1927 69 1727 122 1928 77.8 1728 103 1929 64.9 1729 73 1930 35.7 1730 47 1931 21.2 1731 35 1932 11.1 1732 11 1933 5.7 1733 5 1934 8.7 1734 16 1935 36.1 1735 34 1936 79.7 1736 70 1937 114.4 1737 81 1938 109.6 1738 111 1939 88.8 1739 101 1940 67.8 1740 73 1941 47.5 1741 40 1942 30.6 1742 20 1943 16.3 1743 16 1944 9.6 1744 5 1945 33.2 1745 11 1946 92.6 1746 22 1947 151.6 1747 40 1948 136.3 1748 60 1949 134.7 1749 80.9 1950 83.9 1750 83.4 1951 69.4 1751 47.7 1952 31.5 1752 47.8 1953 13.9 1753 30.7 1954 4.4 1754 12.2 1955 38 1755 9.6 1956 141.7 1756 10.2 1957 190.2 1757 32.4 1958 184.8 1758 47.6 1959 159 1759 54 1960 112.3 1760 62.9 1961 53.9 1761 85.9 1962 37.5 1762 61.2 1963 27.9 1763 45.1 1964 10.2 1764 36.4 1965 15.1 1765 20.9 1966 47 1766 11.4 1967 93.8 1767 37.8 1968 105.9 1768 69.8 1969 105.5 1769 106.1 1970 104.5 1770 100.8 1971 66.6 1771 81.6 1972 68.9 1772 66.5 1973 38 1773 34.8 1974 34.5 1774 30.6 1975 15.5 1775 7 1976 12.6 1776 19.8 1977 27.5 1777 92.5 1978 92.5 1778 154.4 1979 155.4 1779 125.9 1980 154.7 1780 84.8 1981 140.5 1781 68.1 1982 116.3 1782 38.5 1983 66.6 1783 22.8 1984 45.9 1784 10.2 1985 18 1785 24.1 1986 13.4 1786 82.9 1987 29 1787 132 1988 100 1788 130.9 1989 157.8 1789 118.1 1990 142.3 1790 89.9 1991 145.8 1791 66.6 1992 94.5 1792 60 1993 54.7 1793 46.9 1994 29.9 1794 41 1995 17.5 1795 21.3 1996 8.6 1796 16 1997 21.5 1797 6.4 1998 64 1798 4.1 1999 93.2 1799 6.8 2000 113.6 1800 14.5 1801 34 1802 45 1803 43.1 1804 47.5 1805 42.2 1806 28.1 1807 10.1 1808 8.1 1809 2.5 1810 0 1811 1.4 1812 5 1813 12.2 1814 13.9 1815 35.4 1816 45.8 1817 41.1 1818 30.1 1819 23.9 1820 15.6 1821 6.6 1822 4 1823 1.8 1824 8.5 1825 16.6 1826 36.3 1827 49.6 1828 64.2 1829 67 1830 70.9 1831 47.8 1832 27.5 1833 8.5 1834 13.2 1835 56.9 1836 121.5 1837 138.3 1838 103.2 1839 85.7 1840 64.6 1841 36.7 1842 24.2 1843 10.7 1844 15 1845 40.1 1846 61.5 1847 98.5 1848 124.7 1849 96.3 1850 66.6 1851 64.5 1852 54.1 1853 39 1854 20.6 1855 6.7 1856 4.3 1857 22.7 1858 54.8 1859 93.8 1860 95.8 1861 77.2 1862 59.1 1863 44 1864 47 1865 30.5 1866 16.3 1867 7.3 1868 37.6 1869 74 1870 139 1871 111.2 1872 101.6 1873 66.2 1874 44.7 1875 17 1876 11.3 1877 12.4 1878 3.4 1879 6 1880 32.3 1881 54.3 1882 59.7 1883 63.7 1884 63.5 1885 52.2 1886 25.4 1887 13.1 1888 6.8 1889 6.3 1890 7.1 1891 35.6 1892 73 1893 85.1 1894 78 1895 64 1896 41.8 1897 26.2 1898 26.7 1899 12.1 1900 9.5 1901 2.7 1902 5 1903 24.4 1904 42 1905 63.5 1906 53.8 1907 62 1908 48.5 1909 43.9 1910 18.6 1911 5.7 1912 3.6 1913 1.4 1914 9.6 1915 47.4 1916 57.1 1917 103.9 1918 80.6 1919 63.6 1920 37.6 1921 26.1 1922 14.2 1923 5.8 1924 16.7 1925 44.3 1926 63.9 1927 69 1928 77.8 1929 64.9 1930 35.7 1931 21.2 1932 11.1 1933 5.7 1934 8.7 1935 36.1 1936 79.7 1937 114.4 1938 109.6 1939 88.8 1940 67.8 1941 47.5 1942 30.6 1943 16.3 1944 9.6 1945 33.2 1946 92.6 1947 151.6 1948 136.3 1949 134.7 1950 83.9 1951 69.4 1952 31.5 1953 13.9 1954 4.4 1955 38 1956 141.7 1957 190.2 1958 184.8 1959 159 1960 112.3 1961 53.9 1962 37.5 1963 27.9 1964 10.2 1965 15.1 1966 47 1967 93.8 1968 105.9 1969 105.5 1970 104.5 1971 66.6 1972 68.9 1973 38 1974 34.5 1975 15.5 1976 12.6 1977 27.5 1978 92.5 1979 155.4 1980 154.7 1981 140.5 1982 116.3 1983 66.6 1984 45.9 1985 18 1986 13.4 1987 29 1988 100 1989 157.8 1990 142.3 1991 145.8 1992 94.5 1993 54.7 1994 29.9 1995 17.5 1996 8.6 1997 21.5 1998 64 1999 93.2 2000 113.6