関連ワード:  what is hdi human development index    what is hdi human development index class 10    what is the hdi human development index ranking for canada    what is hdi human development index and what does it measure    what is human development index hdi name its variables    what is human development index hdi used for    what is the meaning of hdi human development index    what is hdi explain the components of human development index    what is the human development index hdi used for class 9    what is the human development index hdi used to measure