Mauritius
0-14 years: 22.5% (male 147,136/female 142,121)
15-64 years: 70.4% (male 449,176/female 455,057)
65 years and over: 7.1% (male 36,309/female 54,465) (2010 est.)
Mayotte
0-14 years: 45.3% (male 50,985/female 50,413)
15-64 years: 52.9% (male 63,395/female 54,882)
65 years and over: 1.8% (male 2,085/female 2,005) (2010 est.)
Mexico
0-14 years: 29.1% (male 16,544,223/female 15,861,141)
15-64 years: 64.6% (male 34,734,571/female 37,129,793)
65 years and over: 6.2% (male 3,130,518/female 3,811,543) (2010 est.)
Micronesia, Federated States of 0-14 years: 34.8% (male 19,010/female 18,411) 15-64 years: 62.3% (male 33,286/female 33,629) 65 years and over: 2.9% (male 1,317/female 1,781) (2010 est.)
Moldova
0-14 years: 15.9% (male 353,495/female 334,592)
15-64 years: 73.3% (male 1,536,263/female 1,629,882)
65 years and over: 10.8% (male 172,070/female 294,446) (2010 est.)
Monaco
0-14 years: 14.6% (male 2,466/female 2,349)
15-64 years: 62.4% (male 10,184/female 10,395)
65 years and over: 23% (male 3,068/female 4,503) (2010 est.)
Mongolia
0-14 years: 28.1% (male 436,391/female 418,923)
15-64 years: 67.9% (male 1,031,819/female 1,033,806)
65 years and over: 4% (male 52,430/female 67,773) (2010 est.)
Montenegro
0-14 years: 16% (male 52,645/female 54,846)
15-64 years: 70.3% (male 244,949/female 227,794)
65 years and over: 13.7% (male 37,217/female 54,729) (2010 est.)
Montserrat
0-14 years: 27.6% (male 731/female 678)
15-64 years: 65.5% (male 1,599/female 1,738)
65 years and over: 6.9% (male 232/female 119) (2010 est.)
Morocco
0-14 years: 28.7% (male 4,548,808/female 4,418,768)
15-64 years: 65.4% (male 10,009,928/female 10,437,103)
65 years and over: 6% (male 851,190/female 1,019,377) (2010 est.)