| Country | Year | ICOR |
| Japan | 1990-1996 | 3.75 |
| 1961-1970 | 3.20 | |
| South Korea | 1981-1990 | 3.20 |
| Taiwan | 1981-1990 | 2.70 |
| India | 2001-2007 | 4.14 |
| 2014- | 6.50 | |
| Bangladesh | 2001-2007 | 4.80 |
| Philippines | 2001-2007 | 4.09 |
| Thailand | 1983-1990 | 3.83 |
| Sri Lanka | 2001-2007 | 4.86 |
| Nepal | 2001-2007 | 5.73 |