The pie charts illustrate about population humans in 2000 and prediction number of citizens in Yemen and Italy in 2050. It is classified in three age range.
People who had age between 15-59 years old and children in Yemen were almost equal in 2000, while old generations only had 3,6%. Then in 2050, the population growth will be projected, especially number of mortality and birth. We can see that number of children will fall and nonproduction-age people add during the next a half century.
In the end of Second Millennium, Italian was dominated by production age between 15 and 59 years old. However, it will decline in the middle of 21st Century approximately 15%. In 2050 old people and productive age are similar, under 50%.
In conclusion, government in Yemen and Italy countries will plan to press number of mortality and birth number in 2050. However government in Italy is more successful to applicate this policy.