Year	Measure
1800	1448
1801	1448
1802	1448
1803	1448
1804	1448
1805	1448
1806	1448
1807	1448
1808	1448
1809	1448
1810	1448
1811	1448
1812	1448
1813	1448
1814	1448
1815	1448
1816	1448
1817	1448
1818	1448
1819	1448
1820	1448
1821	1455
1822	1463
1823	1471
1824	1478
1825	1486
1826	1494
1827	1502
1828	1510
1829	1518
1830	1526
1831	1534
1832	1542
1833	1550
1834	1558
1835	1567
1836	1575
1837	1583
1838	1592
1839	1600
1840	1609
1841	1617
1842	1626
1843	1634
1844	1643
1845	1652
1846	1660
1847	1669
1848	1678
1849	1687
1850	1696
1851	1705
1852	1714
1853	1723
1854	1732
1855	1741
1856	1750
1857	1759
1858	1769
1859	1778
1860	1787
1861	1797
1862	1806
1863	1816
1864	1826
1865	1835
1866	1845
1867	1855
1868	1864
1869	1874
1870	1884
1871	1894
1872	1904
1873	1914
1874	1924
1875	1934
1876	1945
1877	1955
1878	1965
1879	1976
1880	1986
1881	1997
1882	2007
1883	2018
1884	2028
1885	2039
1886	2050
1887	2061
1888	2072
1889	2083
1890	2094
1891	2105
1892	2116
1893	2127
1894	2138
1895	2150
1896	2161
1897	2172
1898	2184
1899	2195
1900	2207
1901	2219
1902	2230
1903	2242
1904	2254
1905	2266
1906	2278
1907	2290
1908	2302
1909	2314
1910	2326
1911	2339
1912	2351
1913	2364
1914	2415
1915	2468
1916	2522
1917	2578
1918	2634
1919	2692
1920	2751
1921	2811
1922	2873
1923	2936
1924	3000
1925	3066
1926	3133
1927	3201
1928	3272
1929	3343
1930	3417
1931	3491
1932	3568
1933	3646
1934	3726
1935	3808
1936	3891
1937	3976
1938	4063
1939	4152
1940	4243
1941	4336
1942	4431
1943	4529
1944	4628
1945	4729
1946	4833
1947	4939
1948	5047
1949	5157
1950	5270
1951	5422
1952	5756
1953	6074
1954	6295
1955	6513
1956	6983
1957	7297
1958	7380
1959	7963
1960	8410
1961	9041
1962	9540
1963	10330
1964	10820
1965	11600
1966	12280
1967	12940
1968	13430
1969	14360
1970	15610
1971	16330
1972	17040
1973	17950
1974	17820
1975	17080
1976	17440
1977	18250
1978	19220
1979	20070
1980	20120
1981	20150
1982	19290
1983	19170
1984	20360
1985	20580
1986	22060
1987	22940
1988	24220
1989	25190
1990	25910
1991	26320
1992	27340
1993	28370
1994	29290
1995	30340
1996	30990
1997	31750
1998	32580
1999	33770
2000	34680
2001	35230
2002	35210
2003	35610
2004	36020
2005	36840
2006	36030
2007	35420
2008	34830
2009	34570
2010	34580
2011	34120
2012	33500
2013	33640
