| ROA (%) | 2009 | Cumulative Percentage | 2010 | Cumulative Percentage | 2011 | Cumulative Percentage | 2012 | Cumulative Percentage | 2013 | Cumulative Percentage |
| 96 | 19.63 | 89 | 18.02 | 120 | 24.24 | 104 | 20.93 | 102 | 20.48 | |
| 0 - 5 | 107 | 41.51 | 93 | 36.84 | 119 | 48.28 | 128 | 46.68 | 120 | 44.58 |
| 5 - 10 | 97 | 61.35 | 99 | 56.88 | 113 | 71.11 | 103 | 67.40 | 124 | 69.48 |
| 10 - 15 | 93 | 80.37 | 109 | 78.95 | 70 | 85.25 | 80 | 83.50 | 90 | 87.55 |
| 15 - 20 | 41 | 88.75 | 40 | 87.04 | 43 | 93.94 | 46 | 92.76 | 32 | 93.98 |
| 20 - 25 | 32 | 95.30 | 32 | 93.52 | 18 | 97.58 | 14 | 95.57 | 15 | 96.99 |
| >25 | 23 | 100.00 | 32 | 100.00 | 12 | 100.00 | 22 | 100.00 | 15 | 100.00 |
| Total | 489 | 494 | 495 | 497 | 498 |