<Tr> <Td> China! Mainland China </Td> <Td> Chongqing </Td> <Td> Chongqing Jiangbei International Airport </Td> <Td> Cargo only </Td> </Tr> <Tr> <Td> China! Mainland China </Td> <Td> Shanghai </Td> <Td> Shanghai Pudong International Airport </Td> <Td> Passenger and cargo </Td> </Tr> <Tr> <Td> China! Mainland China </Td> <Td> Xiamen </Td> <Td> Xiamen Gaoqi International Airport </Td> <Td> Cargo only </Td> </Tr> <Tr> <Td> China! Mainland China </Td> <Td> Zhengzhou </Td> <Td> Zhengzhou Xinzheng International Airport </Td> <Td> Cargo only </Td> </Tr>

How many daily flights does cathay pacific operate from north america to hong kong