<Tr> <Td> Matthew </Td> <Td> 2016 </Td> <Td> </Td> <Td> Haiti, Cuba & Grand Bahama </Td> <Td> </Td> <Td> </Td> <Td> South Carolina </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Irma </Td> <Td> 2017 </Td> <Td> Barbuda, Saint Martin, Ginger Island, Tortola, Little Inagua & Cuba </Td> <Td> Florida Keys </Td> <Td> Southwest Florida </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Maria </Td> <Td> 2017 </Td> <Td> Dominica </Td> <Td> Puerto Rico </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr>

How many years has it been since a category 4 hit puerto rico