| Place | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 |
| Philippines | 90.29 | 88.74 | 87.11 | 84.44 | 83.22 | 84.83 | 85.14 |
| NCR | 97.38 | 96.81 | 94.82 | 92.61 | 92.89 | 94.42 | 93.69 |
| CAR | 91.52 | 89.19 | 86.40 | 82.58 | 80.86 | 81.50 | 81.93 |
| Region I - Ilocos | 89.64 | 88.52 | 86.98 | 84.87 | 82.74 | 82.95 | 82.85 |
| Region II - Cagayan Valley | 86.71 | 85.65 | 82.90 | 79.92 | 77.70 | 77.53 | 76.23 |
| Region III - Central Luzon | 93.58 | 93.61 | 92.03 | 90.77 | 89.14 | 91.37 | 90.93 |
| Region IVA - CALABARZON | 95.97 | 95.33 | 95.10 | 92.87 | 92.36 | 94.02 | 94.10 |
| Region IVB - MIMAROPA | 91.52 | 89.42 | 88.00 | 84.39 | 83.84 | 84.07 | 85.42 |
| Region V - Bicol | 90.95 | 89.30 | 87.78 | 85.43 | 83.80 | 85.41 | 85.07 |
| Region VI - Western Visayas | 85.95 | 83.25 | 80.49 | 77.14 | 74.96 | 75.44 | 74.93 |
| Region VII - Central Visayas | 88.09 | 85.57 | 83.53 | 80.08 | 78.87 | 80.28 | 81.38 |
| Region VIII - Eastern Visayas | 85.91 | 83.74 | 83.44 | 80.03 | 78.15 | 79.19 | 80.33 |
| Region IX - Zamboanga Peninsula | 89.74 | 84.83 | 82.83 | 79.14 | 77.59 | 78.99 | 79.25 |
| Region X - Northern Mindanao | 89.04 | 86.92 | 84.16 | 80.20 | 78.96 | 80.60 | 81.23 |
| Region XI - Davao | 84.96 | 84.36 | 82.54 | 79.01 | 75.89 | 77.38 | 77.99 |
| Region XII - SOCCSKSARGEN | 82.01 | 81.18 | 79.99 | 77.43 | 76.35 | 78.65 | 80.12 |
| CARAGA | 80.73 | 78.04 | 75.08 | 74.80 | 77.76 | 78.69 | 76.39 |
| ARMM | 92.72 | 90.13 | 90.01 | 87.26 | 85.82 | 94.01 | 99.85 |