| 1/1/2010 | AFD 17.7, SD 4.1, CV 23.2, %>30 1.4 | |
| 1/1/2011 | AFD 16.9, SD 3.6, CV 21.2, %>30 0.5 | |
| 1/1/2012 | AFD 16.9, SD 3.3, CV 19.5, %>30 0.5 | |
| 1/1/2013 | AFD 18.1, SD 3.5, CV 19.1, %>30 0.5 | |
| 1/1/2014 | AFD 19.0, SD 3.6, CV 18.7, %>30 0.9 | |
| 1/1/2015 | AFD 18.9, SD 3.6, CV 18.9, %>30 1.1 | |
| 1/1/2017 | AFD 20.5, SD 3.9, CV 19.1, %>30 0.2 | |