% Rg is the group sunspot number series produced in Chatzistergos et al. 2017 % +/-sigma are the upper/lower standard deviation intervals %1 2 3 4 %date Rg sigma+ sigma- 1739.5 4.01 2.29 2.08 1740.5 -99 -99 -99 1741.5 -99 -99 -99 1742.5 1.73 1.55 0.95 1743.5 1.63 1.91 1.15 1744.5 -99 -99 -99 1745.5 -99 -99 -99 1746.5 -99 -99 -99 1747.5 -99 -99 -99 1748.5 5.43 1.69 1.28 1749.5 6.68 0.98 0.99 1750.5 4.94 1.51 0.49 1751.5 3.84 0.80 0.62 1752.5 4.34 0.66 0.77 1753.5 3.40 0.84 0.65 1754.5 1.68 0.71 0.50 1755.5 1.56 0.71 0.50 1756.5 1.64 0.63 0.52 1757.5 2.28 0.69 0.45 1758.5 3.02 0.90 0.47 1759.5 5.17 1.19 1.19 1760.5 5.17 1.13 0.97 1761.5 6.72 0.79 1.10 1762.5 5.44 0.86 0.76 1763.5 4.35 0.71 0.69 1764.5 3.58 0.79 0.66 1765.5 1.73 0.71 0.47 1766.5 1.55 0.48 0.48 1767.5 3.64 0.76 0.51 1768.5 6.02 1.01 0.80 1769.5 7.71 1.12 1.07 1770.5 7.68 1.10 1.07 1771.5 6.89 0.87 1.19 1772.5 5.23 0.92 0.66 1773.5 3.21 0.68 0.51 1774.5 2.96 0.80 0.44 1775.5 1.70 0.48 0.47 1776.5 2.08 0.60 0.43 1777.5 4.33 1.22 0.53 1778.5 8.86 1.24 1.12 1779.5 9.48 1.48 1.35 1780.5 7.45 1.11 1.33 1781.5 6.33 1.19 1.00 1782.5 4.20 0.86 0.93 1783.5 3.41 0.88 0.62 1784.5 2.12 0.85 0.74 1785.5 2.97 0.59 0.66 1786.5 6.00 1.31 0.60 1787.5 8.28 1.07 1.11 1788.5 8.72 1.05 1.03 1789.5 7.87 1.00 1.22 1790.5 6.88 1.09 1.10 1791.5 5.59 0.92 1.16 1792.5 5.48 1.44 1.22 1793.5 2.51 1.30 0.56 1794.5 4.71 0.81 1.23 1795.5 3.02 0.70 0.92 1796.5 2.38 0.68 0.57 1797.5 1.73 0.58 0.45 1798.5 1.30 0.63 0.34 1799.5 1.74 0.53 0.51 1800.5 2.41 0.67 0.61 1801.5 4.42 0.96 0.82 1802.5 3.69 0.87 0.71 1803.5 3.01 0.78 0.73 1804.5 3.13 0.74 0.71 1805.5 3.13 0.72 0.69 1806.5 2.62 0.54 0.67 1807.5 2.09 0.53 0.70 1808.5 1.86 0.67 0.38 1809.5 1.52 0.59 0.46 1810.5 1.08 0.52 0.40 1811.5 1.27 0.52 0.44 1812.5 1.92 0.55 0.60 1813.5 2.26 0.71 0.53 1814.5 2.04 0.62 0.49 1815.5 3.22 0.76 0.60 1816.5 4.26 0.69 0.81 1817.5 4.20 0.79 0.81 1818.5 3.78 0.78 0.70 1819.5 3.04 0.82 0.62 1820.5 2.42 0.65 0.51 1821.5 1.87 0.58 0.51 1822.5 1.56 0.57 0.43 1823.5 1.28 0.51 0.37 1824.5 1.60 0.62 0.39 1825.5 2.54 0.78 0.60 1826.5 3.67 0.88 0.75 1827.5 4.71 0.92 0.83 1828.5 5.54 1.00 1.00 1829.5 5.71 0.95 0.92 1830.5 6.03 1.00 1.00 1831.5 4.34 0.91 0.87 1832.5 3.08 0.84 0.63 1833.5 1.77 0.62 0.52 1834.5 1.70 0.70 0.51 1835.5 4.69 0.91 0.80 1836.5 8.32 1.10 0.93 1837.5 9.47 0.84 1.08 1838.5 7.29 1.06 1.02 1839.5 6.49 1.01 0.96 1840.5 5.12 1.01 0.90 1841.5 3.40 0.82 0.77 1842.5 2.42 0.78 0.63 1843.5 1.35 0.57 0.40 1844.5 1.78 0.65 0.54 1845.5 3.61 0.90 0.83 1846.5 4.57 0.94 0.90 1847.5 6.82 0.85 1.19 1848.5 8.55 0.92 1.00 1849.5 7.89 1.01 0.94 1850.5 5.96 1.00 1.01 1851.5 5.99 1.01 0.94 1852.5 5.48 1.04 0.94 1853.5 4.33 0.88 0.85 1854.5 2.55 0.73 0.70 1855.5 1.33 0.53 0.44 1856.5 1.10 0.50 0.39 1857.5 2.95 0.73 0.75 1858.5 5.44 0.95 0.83 1859.5 7.94 0.97 1.02 1860.5 8.34 0.96 1.01 1861.5 7.01 0.94 0.99 1862.5 5.50 0.93 0.88 1863.5 4.74 0.91 0.79 1864.5 4.47 0.87 0.81 1865.5 3.23 0.79 0.74 1866.5 2.27 0.66 0.57 1867.5 1.41 0.56 0.46 1868.5 3.62 0.84 0.68 1869.5 6.21 0.98 0.85 1870.5 9.24 0.84 0.99 1871.5 7.93 0.91 0.95 1872.5 7.58 0.87 0.96 1873.5 5.27 0.90 0.82 1874.5 4.18 0.79 0.74 1875.5 2.09 0.69 0.52 1876.5 1.44 0.54 0.43 1877.5 1.37 0.54 0.41 1878.5 0.77 0.40 0.29 1879.5 0.99 0.42 0.37 1880.5 3.03 0.72 0.57 1881.5 4.93 0.88 0.77 1882.5 4.98 0.82 0.80 1883.5 5.43 0.90 0.83 1884.5 5.98 0.82 0.81 1885.5 4.88 0.75 0.80 1886.5 2.79 0.63 0.66 1887.5 1.66 0.57 0.51 1888.5 1.10 0.51 0.32 1889.5 1.04 0.46 0.37 1890.5 1.15 0.49 0.39 1891.5 3.98 0.76 0.75 1892.5 6.51 0.94 0.88 1893.5 7.66 0.97 0.96 1894.5 7.31 0.95 0.93 1895.5 5.86 0.94 0.82 1896.5 3.85 0.78 0.68 1897.5 3.05 0.70 0.63 1898.5 2.63 0.68 0.58 1899.5 1.50 0.50 0.44 1900.5 1.25 0.53 0.40 1901.5 0.54 0.36 0.25 1902.5 0.65 0.35 0.26 1903.5 2.36 0.64 0.49 1904.5 4.23 0.68 0.69 1905.5 5.10 0.85 0.71 1906.5 5.10 0.74 0.78 1907.5 5.27 0.84 0.65 1908.5 4.91 0.84 0.79 1909.5 4.06 0.78 0.64 1910.5 2.12 0.54 0.49 1911.5 0.97 0.42 0.34 1912.5 0.60 0.37 0.24 1913.5 0.42 0.34 0.20 1914.5 1.17 0.50 0.33 1915.5 4.13 0.78 0.76 1916.5 5.36 0.90 0.83 1917.5 8.57 0.89 1.05 1918.5 7.20 0.88 0.90 1919.5 6.00 0.78 0.79 1920.5 3.78 0.70 0.62 1921.5 2.65 0.63 0.58 1922.5 1.59 0.55 0.41 1923.5 0.92 0.37 0.33 1924.5 1.85 0.49 0.44 1925.5 4.22 0.76 0.72 1926.5 5.87 0.82 0.74 1927.5 6.28 0.83 0.83 1928.5 6.72 0.85 0.91 1929.5 6.05 0.81 0.74 1930.5 3.83 0.77 0.63 1931.5 2.39 0.53 0.49 1932.5 1.31 0.43 0.34 1933.5 0.72 0.33 0.28 1934.5 1.05 0.42 0.34 1935.5 3.75 0.77 0.62 1936.5 7.45 0.95 0.79 1937.5 10.10 1.14 1.07 1938.5 9.72 0.98 0.95 1939.5 8.10 0.72 0.73 1940.5 6.31 0.77 0.74 1941.5 4.55 0.78 0.69 1942.5 2.86 0.62 0.46 1943.5 1.63 0.41 0.36 1944.5 1.27 0.43 0.33 1945.5 3.55 0.70 0.63 1946.5 8.07 0.99 0.82 1947.5 11.62 1.07 1.12 1948.5 10.59 1.04 0.98 1949.5 10.04 0.98 0.96 1950.5 6.47 0.86 0.83 1951.5 5.19 0.79 0.77 1952.5 2.74 0.57 0.55 1953.5 1.46 0.48 0.39 1954.5 0.74 0.32 0.27 1955.5 3.33 0.73 0.57 1956.5 10.29 0.98 1.05 1957.5 13.03 0.99 0.97 1958.5 13.50 1.11 1.02 1959.5 11.71 0.90 0.95 1960.5 8.53 1.05 0.93 1961.5 4.45 0.74 0.74 1962.5 2.91 0.60 0.53 1963.5 2.35 0.54 0.46 1964.5 1.20 0.39 0.32 1965.5 1.58 0.44 0.39 1966.5 3.97 0.61 0.64 1967.5 7.88 1.02 0.89 1968.5 8.03 0.91 0.92 1969.5 7.90 0.98 0.90 1970.5 8.75 0.91 0.90 1971.5 6.07 0.80 0.74 1972.5 5.94 0.91 0.82 1973.5 3.40 0.71 0.66 1974.5 3.12 0.72 0.66 1975.5 1.57 0.41 0.39 1976.5 1.41 0.39 0.34 1977.5 2.65 0.55 0.50 1978.5 7.92 1.02 0.83 1979.5 11.61 1.08 1.01 1980.5 10.50 1.07 1.06 1981.5 10.78 1.02 1.09 1982.5 8.85 1.06 0.89 1983.5 5.52 0.88 0.78 1984.5 3.56 0.70 0.59 1985.5 1.51 0.50 0.39 1986.5 1.19 0.41 0.34 1987.5 2.28 0.56 0.50 1988.5 6.65 0.88 0.83 1989.5 10.81 1.07 1.08 1990.5 10.86 1.14 1.11 1991.5 11.00 1.03 1.15 1992.5 7.46 0.97 0.77 1993.5 4.53 0.69 0.63 1994.5 2.96 0.64 0.54 1995.5 1.83 0.51 0.44 1996.5 1.05 0.37 0.31 1997.5 2.00 0.52 0.40 1998.5 5.53 0.77 0.71 1999.5 7.61 0.98 0.88 2000.5 9.51 1.06 0.98 2001.5 9.76 1.07 0.97 2002.5 9.52 1.06 0.96 2003.5 6.13 0.96 0.93 2004.5 4.15 0.75 0.71 2005.5 3.09 0.68 0.55 2006.5 1.95 0.48 0.44 2007.5 1.15 0.40 0.33 2008.5 0.69 0.33 0.26 2009.5 0.70 0.35 0.23 2010.5 2.03 0.53 0.43