为什么墨西哥阿根廷这些国家人类发展指数比我们高？

[img]https://img.nga.178.com/attachments/mon_202008/30/-7Q5-4tb9ZaT3cSk9-v2.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202008/30/-7Q5-5awaZbT3cSjs-w5.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202008/30/-7Q5-5kb9ZbT3cSl7-y5.jpg.medium.jpg[/img][img]https://img.nga.178.com/attachments/mon_202008/30/-7Q5-5u0pZbT3cSju-y3.jpg.medium.jpg[/img]
有人能告诉我是怎么算的吗？