China
Age structure 0-14 years: 17.1% (male 124,340,516/female 107,287,324)
15-24 years: 14.7% (male 105,763,058/female 93,903,845)
25-54 years: 47.2% (male 327,130,324/female 313,029,536)
55-64 years: 11.3% (male 77,751,100/female 75,737,968)
65 years and over: 9.6% (male 62,646,075/female...