| Years | Indonesia | Malaysia | Netherlands | Philippines | Sri Lanka |
| 2010 | 1.00 | −0.80 | −0.75 | 1.00 | 0.66 |
| 2011 | 1.00 | −0.63 | −0.82 | 1.00 | 0.60 |
| 2012 | 1.00 | −0.67 | −0.92 | 1.00 | 0.78 |
| 2013 | 0.99 | −0.84 | −0.94 | 1.00 | 0.98 |
| 2014 | 1.00 | −0.64 | −0.93 | 1.00 | 0.99 |
| 2015 | 1.00 | −0.74 | −0.90 | 1.00 | 0.91 |
| 2016 | 0.95 | −0.78 | −0.90 | 1.00 | 0.99 |
| 2017 | 0.93 | −0.64 | −0.89 | 0.36 | 0.94 |
| 2018 | 0.91 | −0.68 | −0.94 | 1.00 | 1.00 |
| 2019 | 0.81 | −0.34 | −0.91 | 1.00 | 0.94 |
| 2020 | 0.72 | −0.64 | −0.83 | 1.00 | 0.29 |
| Average | 0.94 | −0.67 | −0.89 | 0.94 | 0.83 |