Currently, the world is home to 7.6 billion people - with approximately 2.7 million coming from two countries alone: China and India.
In celebration of World Population Day - which falls on July 11 - we break down the population size of Arab countries, from highest to lowest.
The numbers are based on statistics taken from Worldometers, an organization which aims to provide world statistics in an easily accessible manner.
1. Egypt (99,375,741)
Yearly Growth: 1.87%
Fertility Rate: 3.4%
2. Algeria (42,008,054)
Yearly Growth: 1.67%
Fertility Rate: 3%
3. Sudan (41,511,526)
Yearly Growth: 2.41%
Fertility Rate: 4.8%
4. Iraq (39,339,753)
Yearly Growth: 2.78%
Fertility Rate: 4.6%
5. Morocco (36,191,805)
Yearly Growth: 1.27%
Fertility Rate: 2.6%
6. Saudi Arabia (33,554,343)
Yearly Growth: 1.87%
Fertility Rate: 2.7%
7. Yemen (28,915,284)
Yearly Growth: 2.35%
Fertility Rate: 4.4%
8. Syria (18,284,407)
Yearly Growth: 0.08 %
Fertility Rate: 3.1%
9. Somalia (15,181,925)
Yearly Growth: 2.98%
Fertility Rate: 6.6%
10. Tunisia (11,659,174)
Yearly Growth: 1.10%
Fertility Rate: 2.3%
11. Jordan (9,903,802)
Yearly Growth: 2.08%
Fertility Rate: 3.6%
12. United Arab Emirates (9,541,615)
Yearly Growth: 1.50%
Fertility Rate: 1.8%
13. Libya (6,470,956)
Yearly Growth: 1.51%
Fertility Rate: 2.4%
14. Lebanon (6,093,509)
Yearly Growth: 0.18%
Fertility Rate: 1.7%
15. Palestine (5,052,776)
Yearly Growth: 2.68%
Fertility Rate: 4.3%
16. Oman (4,829,946)
Yearly Growth: 4.18%
Fertility Rate: 2.9%
17. Mauritania (4,540,068)
Yearly Growth: 2.71%
Fertility Rate: 4.9%
18. Kuwait (4,197,128)
Yearly Growth: 1.46%
Fertility Rate: 2.1%
19. Qatar (2,694,849)
Yearly Growth: 2.11%
Fertility Rate: 2.0%
20. Bahrain (1,566,993)
Yearly Growth: 4.99%
Fertility Rate: 2.1%
21. Djibouti (971,408)
Yearly Growth: 1.51%
Fertility Rate: 3.1%
22. Comoros (832,347)
Yearly Growth: 2.26%
Fertility Rate: 4.6%