Fastest growing cities on earth

1. Puning, China
2. Foshan, China
3. Jinjiang, China
4. Yamoussoukro, Ivory Coast
5. Shenzhen, China
6. Dongguan, Guangdong, China
7. Abuja, Nigeria
8. Huizhou, China
9. Quanzhou, China
10. Ouagadougou, Burkina Faso
11. Zhongshan, China
12. Fuyang, China
13. Kigali, Rwanda
14. Linyi, Shandong, China
15. Taizhou, Jiangsu, China
16. Zhuhai, China
17. Lilongwe, Malawi
18. Jieyang, China
19. Sana'a, Yemen
20. Shaoxing, China
21. Haikou, China
22. Maoming, China
23. Jiangmen, China
24. Shantou, China
25. Huambo, Angola
26. Yiyang, Hunan, China
27. Kabul, Afghanistan
28. Luanda, Angola
29. Nanyang, Henan, China
30. Niamey, Niger
31. Xiamen, China

Source:http://www.businessinsider.com/fastest-growing-cities-on-the-planet-2012-10

And in contrast, these are the fastest shrinking:

1. Dnipropetrovsk, Ukraine
2. Budapest, Hungary
3. Donetsk, Ukraine
4. Zaporizhzhya, Ukraine
5. Nizhniy Novgorod, Russia
6. Saratov, Russia
7. Monrovia, Liberia
8. Busan, South Korea
9. Perm, Russia
10. Kharkiv, Ukraine
11. St. Petersburg, Russia
12. Samara, Russia
13. Odessa, Ukraine
14. Seoul, South Korea
15. Tbilisi,Georgia
16. Ufa, Russia
17. Turin, Italy
18. Voronezh, Russia
19. Bucharest, Romania
20. Volgograd, Russia
21. Prague, Czech Republic
22. Chelyabinsk, Russia
23. Omsk, Russia
24. Yerevan, Armenia
25. Milan, Italy
26. Novosibirsk, Russia
27. Rome, Italy
28. Havana, Cuba

Source: http://www.businessinsider.com/cities-that-are-shrinking-2012-10
What about Detroit?