| Year | Structure (%) | |||
| Total | State | Non-state | FDI | |
| 1995 | 100.0 | 42.0 | 27.6 | 30.4 |
| 1996 | 100.0 | 49.1 | 24.9 | 26.0 |
| 1997 | 100.0 | 49.4 | 22.6 | 28.0 |
| 1998 | 100.0 | 55.5 | 23.7 | 20.8 |
| 1999 | 100.0 | 58.7 | 24.0 | 17.3 |
| 2000 | 100.0 | 59.1 | 22.9 | 18.0 |
| 2001 | 100.0 | 59.8 | 22.6 | 17.6 |
| 2002 | 100.0 | 57.3 | 25.3 | 17.4 |
| 2003 | 100.0 | 52.9 | 31.1 | 16.0 |
| 2004 | 100.0 | 48.1 | 37.7 | 14.2 |
| 2005 | 100.0 | 47.1 | 38.0 | 14.9 |
| 2006 | 100.0 | 45.7 | 38.1 | 16.2 |
| 2007 | 100.0 | 37.2 | 38.5 | 24.3 |
| 2008 | 100.0 | 33.9 | 35.2 | 30.9 |
| 2009 | 100.0 | 40.5 | 33.9 | 25.6 |
| 2010 | 100.0 | 38.1 | 36.1 | 25.8 |
| 2011 | 100.0 | 37.0 | 38.5 | 24.5 |
| 2012 | 100.0 | 40.3 | 38.1 | 21.6 |
| 2013 | 100.0 | 40.4 | 37.7 | 21.9 |
| 2014 | 100.0 | 39.9 | 38.4 | 23.3 |
| 2015 | 100.0 | 38.0 | 38.7 | 23.3 |
| 2016 | 100.0 | 37.6 | 39.0 | 23.4 |
| 2017 | 100.0 | 35.7 | 40.6 | 23.7 |
| Prel. 2018 | 100.0 | 33.3 | 43.3 | 23.4 |