1720 16.98 1721 15.48 1722 16.07 1723 16.60 1724 17.51 1725 19.03 1726 19.89 1727 19.22 1728 18.28 1729 18.22 1730 19.30 1731 17.16 1732 16.47 1733 17.73 1734 17.18 1735 17.29 1736 16.47 1737 17.94 1738 17.94 1739 16.19 1740 17.20 1741 22.18 1742 21.33 1743 18.83 1744 17.90 1745 18.26 1746 19.64 1747 21.78 1748 24.56 1749 23.93 1750 21.69 1751 22.57 1752 22.65 1753 22.28 1754 22.20 1755 22.19 1756 22.43 1757 22.00 1758 23.10 1759 26.21 1760 26.28 1761 25.48 1762 28.42 1763 27.43 1764 24.85 1765 24.41 1766 25.23 1767 25.82 1768 24.90 1769 25.01 1770 25.63 1771 26.50 1772 29.67 1773 28.07 1774 26.08 1775 25.74 1776 29.51 1777 42.21 1778 48.04 1779 77.55 1780 77.21 1781 74.12 1782 57.44 1783 44.52 1784 34.50 1785 31.58 1786 29.94 1787 28.99 1788 25.73 1789 27.45 1790 31.48 1791 29.51 1792 30.96 1793 34.60 1794 36.63 1795 44.43 1796 50.25 1797 45.20 1798 42.09 1799 43.47 1800 44.51 1801 48.99 1802 39.04 1803 39.29 1804 43.30 1805 47.84 1806 43.94 1807 41.85 1808 37.01 1809 42.44 1810 45.03 1811 45.12 1812 45.77 1813 53.76 1814 65.06 1815 59.92 1816 53.12 1817 53.95 1818 50.48 1819 41.86 1820 34.70 1821 32.07 1822 35.02 1823 34.14 1824 31.76 1825 32.62 1826 31.67 1827 31.62 1828 31.84 1829 32.35 1830 29.43 1831 31.38 1832 31.69 1833 32.12 1834 30.50 1835 33.97 1836 39.69 1837 41.33 1838 38.45 1839 38.11 1840 31.63 1841 29.87 1842 26.62 1843 25.06 1844 25.20 1845 27.47 1846 27.62 1847 31.99 1848 28.02 1849 27.79 1850 28.17 1851 27.77 1852 29.37 1853 32.71 1854 38.34 1855 40.81 1856 36.38 1857 37.77 1858 31.56 1859 32.97 1860 31.48 1861 31.11 1862 36.35 1863 46.49 1864 67.47 1865 64.67 1866 60.82 1867 56.63 1868 55.23 1869 52.78 1870 47.19 1871 45.44 1872 47.54 1873 46.49 1874 44.04 1875 41.25 1876 38.45 1877 37.05 1878 31.81 1879 31.46 1880 34.96 1881 36.00 1882 37.75 1883 35.31 1884 32.51 1885 29.71 1886 28.66 1887 29.71 1888 30.06 1889 28.31 1890 28.66 1891 28.46 1892 26.62 1893 27.24 1894 24.43 1895 24.89 1896 23.72 1897 23.77 1898 24.74 1899 26.62 1900 28.61 1901 28.20 1902 30.04 1903 30.40 1904 30.45 1905 30.65 1906 31.52 1907 33.25 1908 32.08 1909 34.48 1910 35.91 1911 33.10 1912 35.24 1913 35.60 1914 34.73 1915 35.45 1916 43.61 1917 59.93 1918 66.97 1919 70.69 1920 78.75 1921 49.78 1922 49.32 1923 51.31 1924 50.03 1925 52.79 1926 51.00 1927 48.66 1928 49.32 1929 48.60 1930 44.11 1931 37.23 1932 33.16 1933 33.63 1934 38.21 1935 40.84 1936 41.24 1937 44.03 1938 40.09 1939 39.36 1940 40.09 1941 44.59 1942 50.39 1943 52.67 1944 53.05 1945 54.01 1946 61.72 1947 76.65 1948 83.08 1949 78.48 1950 81.68 1951 91.10 1952 88.60 1953 87.40 1954 87.60 1955 87.80 1956 90.70 1957 93.30 1958 94.60 1959 94.80 1960 94.90 1961 94.50 1962 94.80 1963 94.50 1964 94.70 1965 96.60 1966 99.80 1967 100.00 1968 102.50 1969 106.50 1970 110.40 1971 113.90 1972 119.10 1973 135.50