📄 sunspot.m
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% MONTHLY MEAN SUNSPOT NUMBERS
%-------------------------------------------------------------------------------
% No observations were available during February 1824. The value shown was
% interpolated from the January and March monthly means of that year.
%
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%Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
%-------------------------------------------------------------------------------
x=[
1749 58.0 62.6 70.0 55.7 85.0 83.5 94.8 66.3 75.9 75.5 158.6 85.2
1750 73.3 75.9 89.2 88.3 90.0 100.0 85.4 103.0 91.2 65.7 63.3 75.4
1751 70.0 43.5 45.3 56.4 60.7 50.7 66.3 59.8 23.5 23.2 28.5 44.0
1752 35.0 50.0 71.0 59.3 59.7 39.6 78.4 29.3 27.1 46.6 37.6 40.0
1753 44.0 32.0 45.7 38.0 36.0 31.7 22.0 39.0 28.0 25.0 20.0 6.7
1754 0.0 3.0 1.7 13.7 20.7 26.7 18.8 12.3 8.2 24.1 13.2 4.2
1755 10.2 11.2 6.8 6.5 0.0 0.0 8.6 3.2 17.8 23.7 6.8 20.0
1756 12.5 7.1 5.4 9.4 12.5 12.9 3.6 6.4 11.8 14.3 17.0 9.4
1757 14.1 21.2 26.2 30.0 38.1 12.8 25.0 51.3 39.7 32.5 64.7 33.5
1758 37.6 52.0 49.0 72.3 46.4 45.0 44.0 38.7 62.5 37.7 43.0 43.0
1759 48.3 44.0 46.8 47.0 49.0 50.0 51.0 71.3 77.2 59.7 46.3 57.0
1760 67.3 59.5 74.7 58.3 72.0 48.3 66.0 75.6 61.3 50.6 59.7 61.0
1761 70.0 91.0 80.7 71.7 107.2 99.3 94.1 91.1 100.7 88.7 89.7 46.0
1762 43.8 72.8 45.7 60.2 39.9 77.1 33.8 67.7 68.5 69.3 77.8 77.2
1763 56.5 31.9 34.2 32.9 32.7 35.8 54.2 26.5 68.1 46.3 60.9 61.4
1764 59.7 59.7 40.2 34.4 44.3 30.0 30.0 30.0 28.2 28.0 26.0 25.7
1765 24.0 26.0 25.0 22.0 20.2 20.0 27.0 29.7 16.0 14.0 14.0 13.0
1766 12.0 11.0 36.6 6.0 26.8 3.0 3.3 4.0 4.3 5.0 5.7 19.2
1767 27.4 30.0 43.0 32.9 29.8 33.3 21.9 40.8 42.7 44.1 54.7 53.3
1768 53.5 66.1 46.3 42.7 77.7 77.4 52.6 66.8 74.8 77.8 90.6 111.8
1769 73.9 64.2 64.3 96.7 73.6 94.4 118.6 120.3 148.8 158.2 148.1 112.0
1770 104.0 142.5 80.1 51.0 70.1 83.3 109.8 126.3 104.4 103.6 132.2 102.3
1771 36.0 46.2 46.7 64.9 152.7 119.5 67.7 58.5 101.4 90.0 99.7 95.7
1772 100.9 90.8 31.1 92.2 38.0 57.0 77.3 56.2 50.5 78.6 61.3 64.0
1773 54.6 29.0 51.2 32.9 41.1 28.4 27.7 12.7 29.3 26.3 40.9 43.2
1774 46.8 65.4 55.7 43.8 51.3 28.5 17.5 6.6 7.9 14.0 17.7 12.2
1775 4.4 0.0 11.6 11.2 3.9 12.3 1.0 7.9 3.2 5.6 15.1 7.9
1776 21.7 11.6 6.3 21.8 11.2 19.0 1.0 24.2 16.0 30.0 35.0 40.0
1777 45.0 36.5 39.0 95.5 80.3 80.7 95.0 112.0 116.2 106.5 146.0 157.3
1778 177.3 109.3 134.0 145.0 238.9 171.6 153.0 140.0 171.7 156.3 150.3 105.0
1779 114.7 165.7 118.0 145.0 140.0 113.7 143.0 112.0 111.0 124.0 114.0 110.0
1780 70.0 98.0 98.0 95.0 107.2 88.0 86.0 86.0 93.7 77.0 60.0 58.7
1781 98.7 74.7 53.0 68.3 104.7 97.7 73.5 66.0 51.0 27.3 67.0 35.2
1782 54.0 37.5 37.0 41.0 54.3 38.0 37.0 44.0 34.0 23.2 31.5 30.0
1783 28.0 38.7 26.7 28.3 23.0 25.2 32.2 20.0 18.0 8.0 15.0 10.5
1784 13.0 8.0 11.0 10.0 6.0 9.0 6.0 10.0 10.0 8.0 17.0 14.0
1785 6.5 8.0 9.0 15.7 20.7 26.3 36.3 20.0 32.0 47.2 40.2 27.3
1786 37.2 47.6 47.7 85.4 92.3 59.0 83.0 89.7 111.5 112.3 116.0 112.7
1787 134.7 106.0 87.4 127.2 134.8 99.2 128.0 137.2 157.3 157.0 141.5 174.0
1788 138.0 129.2 143.3 108.5 113.0 154.2 141.5 136.0 141.0 142.0 94.7 129.5
1789 114.0 125.3 120.0 123.3 123.5 120.0 117.0 103.0 112.0 89.7 134.0 135.5
1790 103.0 127.5 96.3 94.0 93.0 91.0 69.3 87.0 77.3 84.3 82.0 74.0
1791 72.7 62.0 74.0 77.2 73.7 64.2 71.0 43.0 66.5 61.7 67.0 66.0
1792 58.0 64.0 63.0 75.7 62.0 61.0 45.8 60.0 59.0 59.0 57.0 56.0
1793 56.0 55.0 55.5 53.0 52.3 51.0 50.0 29.3 24.0 47.0 44.0 45.7
1794 45.0 44.0 38.0 28.4 55.7 41.5 41.0 40.0 11.1 28.5 67.4 51.4
1795 21.4 39.9 12.6 18.6 31.0 17.1 12.9 25.7 13.5 19.5 25.0 18.0
1796 22.0 23.8 15.7 31.7 21.0 6.7 26.9 1.5 18.4 11.0 8.4 5.1
1797 14.4 4.2 4.0 4.0 7.3 11.1 4.3 6.0 5.7 6.9 5.8 3.0
1798 2.0 4.0 12.4 1.1 0.0 0.0 0.0 3.0 2.4 1.5 12.5 9.9
1799 1.6 12.6 21.7 8.4 8.2 10.6 2.1 0.0 0.0 4.6 2.7 8.6
1800 6.9 9.3 13.9 0.0 5.0 23.7 21.0 19.5 11.5 12.3 10.5 40.1
1801 27.0 29.0 30.0 31.0 32.0 31.2 35.0 38.7 33.5 32.6 39.8 48.2
1802 47.8 47.0 40.8 42.0 44.0 46.0 48.0 50.0 51.8 38.5 34.5 50.0
1803 50.0 50.8 29.5 25.0 44.3 36.0 48.3 34.1 45.3 54.3 51.0 48.0
1804 45.3 48.3 48.0 50.6 33.4 34.8 29.8 43.1 53.0 62.3 61.0 60.0
1805 61.0 44.1 51.4 37.5 39.0 40.5 37.6 42.7 44.4 29.4 41.0 38.3
1806 39.0 29.6 32.7 27.7 26.4 25.6 30.0 26.3 24.0 27.0 25.0 24.0
1807 12.0 12.2 9.6 23.8 10.0 12.0 12.7 12.0 5.7 8.0 2.6 0.0
1808 0.0 4.5 0.0 12.3 13.5 13.5 6.7 8.0 11.7 4.7 10.5 12.3
1809 7.2 9.2 0.9 2.5 2.0 7.7 0.3 0.2 0.4 0.0 0.0 0.0
1810 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
1811 0.0 0.0 0.0 0.0 0.0 0.0 6.6 0.0 2.4 6.1 0.8 1.1
1812 11.3 1.9 0.7 0.0 1.0 1.3 0.5 15.6 5.2 3.9 7.9 10.1
1813 0.0 10.3 1.9 16.6 5.5 11.2 18.3 8.4 15.3 27.8 16.7 14.3
1814 22.2 12.0 5.7 23.8 5.8 14.9 18.5 2.3 8.1 19.3 14.5 20.1
1815 19.2 32.2 26.2 31.6 9.8 55.9 35.5 47.2 31.5 33.5 37.2 65.0
1816 26.3 68.8 73.7 58.8 44.3 43.6 38.8 23.2 47.8 56.4 38.1 29.9
1817 36.4 57.9 96.2 26.4 21.2 40.0 50.0 45.0 36.7 25.6 28.9 28.4
1818 34.9 22.4 25.4 34.5 53.1 36.4 28.0 31.5 26.1 31.6 10.9 25.8
1819 32.8 20.7 3.7 20.2 19.6 35.0 31.4 26.1 14.9 27.5 25.1 30.6
1820 19.2 26.6 4.5 19.4 29.3 10.8 20.6 25.9 5.2 8.9 7.9 9.1
1821 21.5 4.2 5.7 9.2 1.7 1.8 2.5 4.8 4.4 18.8 4.4 0.2
1822 0.0 0.9 16.1 13.5 1.5 5.6 7.9 2.1 0.0 0.4 0.0 0.0
1823 0.0 0.0 0.6 0.0 0.0 0.0 0.5 0.0 0.0 0.0 0.0 20.4
1824 21.7 10.8 0.0 19.4 2.8 0.0 0.0 1.4 20.5 25.2 0.0 0.8
1825 5.0 15.5 22.4 3.8 15.5 15.4 30.9 25.7 15.7 15.6 11.7 22.0
1826 17.7 18.2 36.7 24.0 32.4 37.1 52.5 39.6 18.9 50.6 39.5 68.1
1827 34.6 47.4 57.8 46.0 56.3 56.7 42.3 53.7 49.6 56.1 48.2 46.1
1828 52.8 64.4 65.0 61.1 89.1 98.0 54.2 76.4 50.4 54.7 57.0 46.9
1829 43.0 49.4 72.3 95.0 67.4 73.9 90.8 77.6 52.8 57.2 67.6 56.5
1830 52.2 72.1 84.6 106.3 66.3 65.1 43.9 50.7 62.1 84.4 81.2 82.1
1831 47.5 50.1 93.4 54.5 38.1 33.4 45.2 55.0 37.9 46.3 43.5 28.9
1832 30.9 55.6 55.1 26.9 41.3 26.7 14.0 8.9 8.2 21.1 14.3 27.5
1833 11.3 14.9 11.8 2.8 12.9 1.0 7.0 5.7 11.6 7.5 5.9 9.9
1834 4.9 18.1 3.9 1.4 8.8 7.8 8.7 4.0 11.5 24.8 30.5 34.5
1835 7.5 24.5 19.7 61.5 43.6 33.2 59.8 59.0 100.8 95.2 100.0 77.5
1836 88.6 107.6 98.2 142.9 111.4 124.7 116.7 107.8 95.1 137.4 120.9 206.2
1837 188.0 175.6 134.6 138.2 111.7 158.0 162.8 134.0 96.3 123.7 107.0 129.8
1838 144.9 84.8 140.8 126.6 137.6 94.5 108.2 78.8 73.6 90.8 77.4 79.8
1839 105.6 102.5 77.7 61.8 53.8 54.6 84.8 131.2 132.7 90.9 68.8 63.7
1840 81.2 87.7 67.8 65.9 69.2 48.5 60.7 57.8 74.0 55.0 54.3 53.7
1841 24.1 29.9 29.7 40.2 67.5 55.7 30.8 39.3 36.5 28.5 19.8 38.8
1842 20.4 22.1 21.7 26.9 24.9 20.5 12.6 26.6 18.4 38.1 40.5 17.6
1843 13.3 3.5 8.3 9.5 21.1 10.5 9.5 11.8 4.2 5.3 19.1 12.7
1844 9.4 14.7 13.6 20.8 11.6 3.7 21.2 23.9 7.0 21.5 10.7 21.6
1845 25.7 43.6 43.3 57.0 47.8 31.1 30.6 32.3 29.6 40.7 39.4 59.7
1846 38.7 51.0 63.9 69.3 59.9 65.1 46.5 54.8 107.1 55.9 60.4 65.5
1847 62.6 44.9 85.7 44.7 75.4 85.3 52.2 140.6 160.9 180.4 138.9 109.6
1848 159.1 111.8 108.6 107.1 102.2 129.0 139.2 132.6 100.3 132.4 114.6 159.5
1849 157.0 131.7 96.2 102.5 80.6 81.1 78.0 67.7 93.7 71.5 99.0 97.0
1850 78.0 89.4 82.6 44.1 61.6 70.0 39.1 61.6 86.2 71.0 54.8 61.0
1851 75.5 105.4 64.6 56.5 62.6 63.2 36.1 57.4 67.9 62.5 51.0 71.4
1852 68.4 66.4 61.2 65.4 54.9 46.9 42.1 39.7 37.5 67.3 54.3 45.4
1853 41.1 42.9 37.7 47.6 34.7 40.0 45.9 50.4 33.5 42.3 28.8 23.4
1854 15.4 20.0 20.7 26.5 24.0 21.1 18.7 15.8 22.4 12.6 28.2 21.6
1855 12.3 11.4 17.4 4.4 9.1 5.3 0.4 3.1 0.0 9.6 4.2 3.1
1856 0.5 4.9 0.4 6.5 0.0 5.2 4.6 5.9 4.4 4.5 7.7 7.2
1857 13.7 7.4 5.2 11.1 28.6 16.0 22.2 16.9 42.4 40.6 31.4 37.2
1858 39.0 34.9 57.5 38.3 41.4 44.5 56.7 55.3 80.1 91.2 51.9 66.9
1859 83.7 87.6 90.3 85.7 91.0 87.1 95.2 106.8 105.8 114.6 97.2 81.0
1860 82.4 88.3 98.9 71.4 107.1 108.6 116.7 100.3 92.2 90.1 97.9 95.6
1861 62.3 77.7 101.0 98.5 56.8 88.1 78.0 82.5 79.9 67.2 53.7 80.5
1862 63.1 64.5 43.6 53.7 64.4 84.0 73.4 62.5 66.6 41.9 50.6 40.9
1863 48.3 56.7 66.4 40.6 53.8 40.8 32.7 48.1 22.0 39.9 37.7 41.2
1864 57.7 47.1 66.3 35.8 40.6 57.8 54.7 54.8 28.5 33.9 57.6 28.6
1865 48.7 39.3 39.5 29.4 34.5 33.6 26.8 37.8 21.6 17.1 24.6 12.8
1866 31.6 38.4 24.6 17.6 12.9 16.5 9.3 12.7 7.3 14.1 9.0 1.5
1867 0.0 0.7 9.2 5.1 2.9 1.5 5.0 4.8 9.8 13.5 9.6 25.2
1868 15.6 15.7 26.5 36.6 26.7 31.1 29.0 34.4 47.2 61.6 59.1 67.6
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