The provided pie charts offer insights into the age distribution of Yemen and Italy's populations in 2000, 
as well as
 projections for 2050. In 2000, Yemen's population was predominantly composed of Linking Words
individuals
 aged 0-14 Use synonyms
years
 (50.1%), followed by those aged 15-59 Use synonyms
years
 (46.3%), and Use synonyms
lastly
, Linking Words
individuals
 aged 60 and above (3.6%). Use synonyms
Conversely
, Italy's population in 2000 was mainly comprised of Linking Words
individuals
 aged 15-59 Use synonyms
years
 (61.6%), followed by those aged 60 and above (24.1%), and Use synonyms
lastly
, Linking Words
individuals
 aged 0-14 Use synonyms
years
 (14.3%). Looking ahead to the projection for 2050, Yemen's population is anticipated to see a decrease in the Use synonyms
percentage
 of Use synonyms
individuals
 aged 0-14 Use synonyms
years
 to 37%, Use synonyms
while
 the Linking Words
percentage
 of those aged 15-59 Use synonyms
years
 is projected to increase to 57.3%, and the Use synonyms
percentage
 of Use synonyms
individuals
 aged 60 and above is expected to rise to 5.7%. Use synonyms
Similarly
, Italy's projection for 2050 indicates a decrease in the Linking Words
percentage
 of Use synonyms
individuals
 aged 0-14 Use synonyms
years
 to 11.5%, with an increase in the Use synonyms
percentage
 of those aged 15-59 Use synonyms
years
 to 61.6%, and a notable increase in the Use synonyms
percentage
 of Use synonyms
individuals
 aged 60 and above to 42.3%.Use synonyms