也门与意大利的人口年龄结构Yemen and Italy age groups 2000 and 2050

The four pie charts give the proportions of three different age groups in 2000, and a forecast for 2050 in Yemen and Italy. Overall, Italy had an older population than Yemen in 2000, and both populations are predicted to age in the future. In 2000, in Yemen, over half the population was aged 0-14, and 46.3% was aged from 15 to 59. The smallest proportion was the 60 and over cohort, at just 3.6%. Turning to the Italians, at 61.6% the 15-59-year-olds formed the largest group. Those aged 60 and over accounted for 24.1%, which was more than six times higher than their counterparts in Yemen. With 14.3% the youngest group had the smallest percentage. Turning to the 2050 forecast, in Yemen, the largest group is expected to be those aged 15-59 at 57.3%, followed by forecasted figures of 37% for the youngest group and 5.7% for the oldest cohort. In Italy, those aged 15–59 are predicted to form the largest group at 46.2% followed by the group aged 60 and over, at 42.3%, which is predicted to be almost double its proportion in 2000. The youngest group is anticipated to account for only 11.5% of the population.