| Año | Población |
|---|---|
| 2000 | 38,213,000 |
| 2001 | 38,724,000 |
| 2002 | 39,220,000 |
| 2003 | 39,699,000 |
| 2004 | 40,160,000 |
| 2005 | 40,603,000 |
| 2006 | 41,027,000 |
| 2007 | 41,431,000 |
| 2008 | 41,821,000 |
| 2009 | 42,201,000 |
| 2010 | 42,576,000 |
| 2011 | 42,948,000 |
| 2012 | 43,315,000 |
| 2013 | 43,674,000 |
| 2014 | 44,023,000 |
| 2015 | 44,358,000 |
| 2016 | 44,679,000 |
Fuente: World Bank
