JAN DISTRIBUTION OF GLOBAL POPULATION BY AGE 2019 THE WORLD’S TOTAL POPULATION DETAILED BY FIVE-YEAR AGE GROUPS, IN MILLIONS 666 646 625 604 608 601 584 536 494 485 439 367 318 254 180 127 82 42 16 3.9 0.6 0-4 5-9 10-14 15-19 20-24 25-29 30-34 35-39 40-44 45-49 50-54 55-59 60-64 65-69 70-74 75-79 80-84 85-89 90-94 95-99 100+ SOURCES: BASED ON DATA FROM THE UNITED NATIONS; THE U.S. CENSUS BUREAU (BOTH ACCESSED JANUARY 2019). 27