21. Syria
> Potential net population change (15-29 years old): -41.0%
> Population, 2021: 21,324,367 — -6.2% from 2011
> Population, 2011: 22,730,733
20. Togo
> Potential net population change (15-29 years old): -41.0%
> Population, 2021: 8,644,829 — +28.1% from 2011
> Population, 2011: 6,748,672
19. Venezuela
> Potential net population change (15-29 years old): -42.0%
> Population, 2021: 28,199,867 — -3.1% from 2011
> Population, 2011: 29,096,159
18. Ukraine
> Potential net population change (15-29 years old): -42.0%
> Population, 2021: 43,792,855 — -4.2% from 2011
> Population, 2011: 45,706,086
17. Algeria
> Potential net population change (15-29 years old): -44.0%
> Population, 2021: 44,177,969 — +20.9% from 2011
> Population, 2011: 36,543,541
