Year	Measure
1790	1763
1791	1772
1792	1808
1793	1864
1794	1917
1795	1964
1796	1951
1797	1885
1798	1844
1799	1867
1800	1913
1801	1949
1802	1982
1803	1947
1804	1944
1805	1988
1806	2024
1807	2045
1808	1897
1809	1993
1810	2051
1811	2094
1812	2056
1813	2079
1814	2119
1815	2111
1816	2023
1817	2022
1818	2027
1819	2023
1820	2011
1821	2043
1822	2102
1823	2078
1824	2135
1825	2184
1826	2200
1827	2210
1828	2209
1829	2134
1830	2294
1831	2438
1832	2531
1833	2621
1834	2492
1835	2590
1836	2629
1837	2543
1838	2521
1839	2646
1840	2512
1841	2458
1842	2437
1843	2477
1844	2614
1845	2656
1846	2673
1847	2745
1848	2818
1849	2744
1850	2755
1851	2871
1852	3022
1853	3236
1854	3245
1855	3172
1856	3239
1857	3167
1858	3183
1859	3271
1860	3359
1861	3288
1862	3394
1863	3618
1864	3739
1865	3542
1866	3514
1867	3632
1868	3682
1869	3781
1870	3971
1871	4045
1872	4106
1873	4199
1874	4056
1875	4171
1876	4132
1877	4182
1878	4276
1879	4719
1880	5179
1881	5239
1882	5429
1883	5403
1884	5362
1885	5278
1886	5332
1887	5472
1888	5331
1889	5549
1890	5525
1891	5584
1892	5717
1893	5580
1894	5298
1895	5829
1896	5604
1897	5963
1898	6009
1899	6610
1900	6624
1901	7306
1902	7282
1903	7356
1904	7495
1905	8032
1906	8205
1907	7929
1908	7340
1909	8048
1910	7914
1911	8011
1912	8317
1913	8449
1914	7616
1915	7759
1916	8875
1917	8714
1918	9255
1919	8908
1920	8568
1921	8069
1922	8505
1923	9512
1924	9545
1925	9582
1926	9990
1927	9869
1928	9893
1929	10390
1930	9346
1931	8641
1932	7434
1933	7268
1934	7978
1935	8601
1936	9630
1937	10030
1938	9569
1939	10230
1940	10950
1941	12670
1942	14820
1943	16980
1944	18090
1945	17610
1946	15430
1947	14930
1948	15270
1949	14870
1950	15860
1951	16750
1952	17040
1953	17470
1954	16980
1955	17820
1956	17780
1957	17750
1958	17220
1959	18080
1960	18180
1961	18230
1962	18980
1963	19460
1964	20240
1965	21210
1966	22260
1967	22500
1968	23270
1969	23670
1970	23350
1971	23740
1972	24650
1973	25740
1974	25280
1975	24890
1976	25880
1977	26720
1978	27810
1979	28280
1980	27840
1981	28160
1982	27240
1983	28120
1984	29790
1985	30640
1986	31300
1987	31950
1988	32860
1989	33590
1990	33710
1991	33080
1992	33590
1993	33910
1994	34730
1995	35050
1996	35810
1997	36850
1998	37810
1999	38910
2000	39760
2001	39470
2002	39540
2003	40040
2004	40960
2005	41670
2006	42380
2007	42760
2008	42230
2009	40580
2010	41230
2011	41680
2012	42300
2013	42720
2014	43580
2015	44730
2016	45860
2017	46970
2018	47910
