It is clear that the proportion of people aged 0-14 in Yemen and Italy tends to decrease. Meanwhile, the proportion of population 15-59 of Yemen increase slightly.By contrast, populations 15-59 of Italy drop significantly. In 2000,the percentage of people aged 0-14 by Yemen accounts for more than half,compared just over 14% of Italy.Only a very small percentage of people in Yemen were over 60 at 3.6%,in contrast to nearly a quarter of the Italy population.The largest group in Italy was the 15-59 year with just over 60% while Yemen had 46,3% of its population in this group. In 2050 the proportion of people aged 15-59 years old in Yemen went up significantly to 57,3%,in contrast, Italy fell sharply to 46,2%.the number of people in Italy over 60 years old increased to 42,3% higher than Yemen only 5,7%.At the same time, the number of people aged 0-14 in both Yemen and Italy decreased