70 期望寿命曲线 60 50 40 20 10 0 015101520253035404550556065707580 AGE life expectancylife expectancy AGE 0 1 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 life expectancy 80 70 60 50 40 30 20 10 0 期望寿命曲线