<Tr> <Td> </Td> <Td> 4,065 </Td> <Td> 292.4 </Td> <Td> 7.19% </Td> </Tr> <Tr> <Td> 1991 </Td> <Td> 3,665 </Td> <Td> 286.0 </Td> <Td> 7.80% </Td> </Tr> <P> The following is a list of the top foreign holders of US Treasury securities as listed by the US Treasury (revised by May 2018 survey): </P> <Table> <Tr> <Th_colspan="4"> Leading foreign holders of US Treasury securities as of May 2018 </Th> </Tr> <Tr> <Th> Country or region </Th> <Th> Billions of dollars (est .) </Th> <Th> Ratio of owned US debt to 2017 GDP (est .) </Th> <Th> Percent change since May 2017 </Th> </Tr> <Tr> <Td> China </Td> <Td> 1,183.1 </Td> <Td> 5% </Td> <Td> + 7% </Td> </Tr> <Tr> <Td> Japan </Td> <Td> 1,048.8 </Td> <Td> 21% </Td> <Td> − 6% </Td> </Tr> <Tr> <Td> Ireland </Td> <Td> 301.0 </Td> <Td> 92% </Td> <Td> + 1% </Td> </Tr> <Tr> <Td> Brazil </Td> <Td> 299.2 </Td> <Td> 14% </Td> <Td> + 11% </Td> </Tr> <Tr> <Td> United Kingdom </Td> <Td> 265.0 </Td> <Td> 10% </Td> <Td> + 12% </Td> </Tr> <Tr> <Td> Switzerland </Td> <Td> 243.4 </Td> <Td> 36% </Td> <Td> + 2% </Td> </Tr> <Tr> <Td> Luxembourg </Td> <Td> 209.1 </Td> <Td> 329% </Td> <Td> + 1% </Td> </Tr> <Tr> <Td> Hong Kong </Td> <Td> 191.7 </Td> <Td> 56% </Td> <Td> − 2% </Td> </Tr> <Tr> <Td> Cayman Islands </Td> <Td> 185.8 </Td> <Td> n / a </Td> <Td> − 26% </Td> </Tr> <Tr> <Td> Taiwan </Td> <Td> 164.8 </Td> <Td> 29% </Td> <Td>--9% </Td> </Tr> <Tr> <Td> Saudi Arabia </Td> <Td> 162.1 </Td> <Td> 24% </Td> <Td> + 21% </Td> </Tr> <Tr> <Td> Belgium </Td> <Td> 150.5 </Td> <Td> 31% </Td> <Td> + 52% </Td> </Tr> <Tr> <Td> India </Td> <Td> 148.9 </Td> <Td> 6% </Td> <Td> + 17% </Td> </Tr> <Tr> <Td> other </Td> <Td> 1,660.2 </Td> <Td> n / a </Td> <Td> + 0.3% </Td> </Tr> <Tr> <Th> Grand total </Th> <Th> 6,213.6 </Th> <Th> n / a </Th> <Th> + 2% </Th> </Tr> </Table>

The us debt is made up of the nations