These pie charts show population data for two countries – Yemen and Italy. On the left, the pie charts show the nations’ demographics in 2000, and on the right they show projected figures for 2050. Both countries are estimated to undergo major changes in the age of their population. In 2000, slightly over half of Yemeni people are in the youngest age group, which is less than fourteen years old. A little less than half are aged between fifteen and fifty-nine years old, and the remaining 3.6% of the population is sixty years old or more. However, it is projected that in 2050 the percentage of the population aged below fourteen years will decline while the other two groups increase. There will be only 37% of the population aged less than fourteen years, while the percentage aged fifteen to fifty-nine will grow to 57.3%. Italy will follow a similar trend. Its youth population will decline from 14.3% to 11.5% while the number of elderly people nearly doubles. However, whereas in Yemen the group of people aged fifteen to fifty-nine grew, in Italy it will be somewhat reduced from nearly two thirds to less than a half of the total population.