{"id":"5fd71a92-2bdc-11ea-aa8c-6f9d12bd1b1a","name":"a03019a","subRegion":{"subRegionType":1,"code":"US","name":"United States","regionCode":"US","regionName":"United States","latitude":38.0,"longitude":-97.0},"data":[{"x":"1867","y":"5879.00"},{"x":"1868","y":"6405.00"},{"x":"1869","y":"7935.00"},{"x":"1870","y":"9158.00"},{"x":"1871","y":"10646.0"},{"x":"1872","y":"12444.0"},{"x":"1873","y":"14457.0"},{"x":"1874","y":"16329.0"},{"x":"1875","y":"17154.0"},{"x":"1876","y":"18730.0"},{"x":"1877","y":"21159.0"},{"x":"1878","y":"23919.0"},{"x":"1879","y":"25070.0"},{"x":"1880","y":"29216.0"},{"x":"1881","y":"32500.0"},{"x":"1882","y":"38842.0"},{"x":"1883","y":"41181.0"},{"x":"1884","y":"42076.0"},{"x":"1885","y":"42097.0"},{"x":"1886","y":"43290.0"},{"x":"1887","y":"47395.0"},{"x":"1888","y":"51464.0"},{"x":"1889","y":"54108.0"},{"x":"1890","y":"55879.0"},{"x":"1891","y":"59148.0"},{"x":"1892","y":"62387.0"},{"x":"1893","y":"66592.0"},{"x":"1894","y":"58632.0"},{"x":"1895","y":"58307.0"},{"x":"1896","y":"58760.0"},{"x":"1897","y":"58152.0"},{"x":"1898","y":"62174.0"},{"x":"1899","y":"61398.0"},{"x":"1900","y":"63168.0"},{"x":"1901","y":"65657.0"},{"x":"1902","y":"69375.0"},{"x":"1903","y":"69791.0"},{"x":"1904","y":"67904.0"},{"x":"1905","y":"67477.0"},{"x":"1906","y":"71487.0"},{"x":"1907","y":"74805.0"},{"x":"1908","y":"62371.0"},{"x":"1909","y":"68053.0"},{"x":"1910","y":"75135.0"},{"x":"1911","y":"77781.0"},{"x":"1912","y":"90000.0"}],"xUnits":{"value":10,"name":"Annual"},"yUnits":{"value":10,"name":"Thousands Of Messages","scaleFactor":1000.0},"lastAccessed":"2019-12-31T15:07:37.279066","downloadUrl":"http://www.nber.org/databases/macrohistory/data/03/a03019a.db"}