<P> Excepting Guam, the inhabited territories have had negative population growth in recent years, as well as high poverty rates, but also high Human Development Index (HDI) rankings . All poverty rates are higher than the mainland United States . Several territories have an official language other than English . </P> <Table> Statistics <Tr> <Th> Territory </Th> <Th> Population Growth (2010 to 2017) </Th> <Th> Poverty rate (2009) </Th> <Th> Life expectancy (years) </Th> <Th> HDI ranking </Th> <Th> GDP (dollars) </Th> <Th> Driving Side </Th> <Th> Time Zone </Th> <Th> Calling Code </Th> <Th> Official Language (s) </Th> </Tr> <Tr> <Td> American Samoa </Td> <Td> − 2.39% </Td> <Td> 57.8% </Td> <Td> 73.4 </Td> <Td> 0.827 (Very High HDI) </Td> <Td> $658,000,000 </Td> <Td> right </Td> <Td> Samoan Standard Time (UTC - 11) </Td> <Td> + 1 - 684 </Td> <Td> English and Samoan </Td> </Tr> <Tr> <Td> Guam </Td> <Td> + 2.12% </Td> <Td> 22.9% </Td> <Td> 76 </Td> <Td> 0.901 (Very High HDI) </Td> <Td> $5,793,000,000 </Td> <Td> right </Td> <Td> Chamorro Standard Time (UTC + 10) </Td> <Td> + 1 - 671 </Td> <Td> English and Chamorro </Td> </Tr> <Tr> <Td> Northern Mariana Islands </Td> <Td> − 0.68% </Td> <Td> 52.3% </Td> <Td> 75.4 </Td> <Td> 0.875 (Very High HDI) </Td> <Td> $1,242,000,000 </Td> <Td> right </Td> <Td> Chamorro Standard Time (UTC + 10) </Td> <Td> + 1 - 670 </Td> <Td> English, Chamorro, and Carolinian </Td> </Tr> <Tr> <Td> Puerto Rico </Td> <Td> − 10.43% </Td> <Td> 43.5% </Td> <Td> 80.9 </Td> <Td> 0.845 (Very High HDI) </Td> <Td> $103,135,000,000 </Td> <Td> right </Td> <Td> Atlantic Standard Time (UTC − 4) </Td> <Td> + 1 - 787, + 1 - 939 </Td> <Td> English and Spanish </Td> </Tr> <Tr> <Td> United States Virgin Islands </Td> <Td> − 3.25% </Td> <Td> 22.4% </Td> <Td> 79.4 </Td> <Td> 0.894 (Very High HDI) </Td> <Td> $3,765,000,000 </Td> <Td> left </Td> <Td> Atlantic Standard Time (UTC − 4) </Td> <Td> + 1 - 340 </Td> <Td> English </Td> </Tr> </Table> <Tr> <Th> Territory </Th> <Th> Population Growth (2010 to 2017) </Th> <Th> Poverty rate (2009) </Th> <Th> Life expectancy (years) </Th> <Th> HDI ranking </Th> <Th> GDP (dollars) </Th> <Th> Driving Side </Th> <Th> Time Zone </Th> <Th> Calling Code </Th> <Th> Official Language (s) </Th> </Tr> <Tr> <Td> American Samoa </Td> <Td> − 2.39% </Td> <Td> 57.8% </Td> <Td> 73.4 </Td> <Td> 0.827 (Very High HDI) </Td> <Td> $658,000,000 </Td> <Td> right </Td> <Td> Samoan Standard Time (UTC - 11) </Td> <Td> + 1 - 684 </Td> <Td> English and Samoan </Td> </Tr>

How many islands are part of the united states