<Table> <Tr> <Td_colspan="3"> Danish West Indies </Td> </Tr> <Tr> <Td_colspan="3"> Dansk Vestindien </Td> </Tr> <Tr> <Td_colspan="3"> Colony of Denmark - Norway (1754--1814) Colony of Denmark (1814--1917) </Td> </Tr> <Tr> <Td_colspan="3"> <Table> <Tr> <Td> </Td> <Td> 1754--1917 </Td> <Td> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="3"> Flag of Denmark / Denmark - Norway (until 1814) Coat of arms of Denmark </Td> </Tr> <Tr> <Td_colspan="3"> </Td> </Tr> <Tr> <Td_colspan="3"> </Td> </Tr> <Tr> <Td_colspan="2"> Capital </Td> <Td> Charlotte Amalie (1672--1754 and 1871--1917) Christiansted (1754--1871) </Td> </Tr> <Tr> <Td_colspan="2"> Languages </Td> <Td> Danish, English </Td> </Tr> <Tr> <Td_colspan="2"> Political structure </Td> <Td> Colony of Denmark - Norway (1754--1814) Colony of Denmark (1814--1917) </Td> </Tr> <Tr> <Td_colspan="2"> Governor - General </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> 1756--66 </Td> <Td> Christian Leberecht von Prøck (first) </Td> </Tr> <Tr> <Td> </Td> <Td> 1916--17 </Td> <Td> Henri Konow (last) </Td> </Tr> <Tr> <Td_colspan="2"> History </Td> <Td> </Td> </Tr> <Tr> <Td> </Td> <Td> Sold by the Danish West India Company </Td> <Td> 1754 </Td> </Tr> <Tr> <Td> </Td> <Td> Treaty of the Danish West Indies </Td> <Td> March 31, 1917 </Td> </Tr> <Tr> <Td_colspan="3"> Area </Td> </Tr> <Tr> <Td> </Td> <Td> </Td> <Td> 400 km (150 sq mi) </Td> </Tr> <Tr> <Td_colspan="3"> Population </Td> </Tr> <Tr> <Td> </Td> <Td> 1911 est . </Td> <Td> 27,000 </Td> </Tr> <Tr> <Td_colspan="2"> Currency </Td> <Td> Rigsdaler (1754--1849) Daler (1849--1917) </Td> </Tr> <Tr> <Td_colspan="3"> <Table> <Tr> <Td> Preceded by </Td> <Td> Succeeded by </Td> </Tr> <Tr> <Td> <Table> <Tr> <Td> </Td> <Td> Danish West India Company </Td> </Tr> </Table> </Td> <Td> <Table> <Tr> <Td> United States Virgin Islands </Td> <Td> </Td> </Tr> </Table> </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Td_colspan="3"> Danish West Indies </Td> </Tr>

How long did denmark rule over the west indies (now united states virgin islands)