| Comparison Period | Interest Rate-Selic | Crisis | Technical Efficiency | Allocative Efficiency | Economic Efficiency |
| Mar 01/Dec 01(1) | Increased | Energy crisis; Argentina crisis; Terrorist attack on United Sates. | Not Significant | Increased | Not Significant |
| Dec 01/Sep 02(2) | Reduced | Not Significant | Not Significant | Not Significant | |
| Sep 02/Mar 03(3) | Increased | Electoral Crisis | Not Significant | Increased | Increased |
| Mar 03/Jun 04(4) | Reduced |
| Not Significant | Not Significant | Not Significant |
| Jun 04/Jun 05(5) | Increased |
| Not Significant | Not Significant | Not Significant |
| Jun 05/Dec 07(6) | Reduced | 2008 Crisis | Not Significant | Reduced | Reduced |
| Dec 07/Dec 08(7) | Increased | Not Significant | Increased | Increased | |
| Dec 08/Dec 09(8) | Reduced | Reduced | Not Significant | Reduced | |
| Dec 09/Jun 11(9) | Increased |
| Increased | Reduced | Not Significant |
| Jun 11/Dec 12(10) | Reduced |
| Not Significant | Not Significant | Not Significant |
| Dec 12/Jun 14(11) | Increased |
| Increased | Not Significant | Not Significant |