<Tr> <Td> 55 </Td> <Td> Dominican Republic </Td> <Td> 21.0 </Td> <Td> North and Central America </Td> <Td> 2000 </Td> </Tr> <Tr> <Td> 56 </Td> <Td> Lithuania </Td> <Td> 24.5 </Td> <Td> Former Soviet Union </Td> <Td> 2007 </Td> </Tr> <Tr> <Td> 57 </Td> <Td> El Salvador </Td> <Td> 25.2 </Td> <Td> North and Central America </Td> <Td> 2001 </Td> </Tr> <Tr> <Td> 58 </Td> <Td> Romania </Td> <Td> 25.7 </Td> <Td> Europe </Td> <Td> 2007 </Td> </Tr>

Why are there water shortages in the world