Datasets:
| Characteristic,Female,Male | |
| 2019,5.9,5.8 | |
| 2018,5.83,5.73 | |
| 2017,5.77,5.67 | |
| 2016,5.7,5.6 | |
| 2015,5.64,5.54 | |
| 2014,5.58,5.49 | |
| 2013,5.51,5.44 | |
| 2012,5.45,5.39 | |
| 2011,5.39,5.35 | |
| 2010,5.33,5.3 | |
| 2009,5.27,5.25 | |
| Characteristic,Female,Male | |
| 2019,5.9,5.8 | |
| 2018,5.83,5.73 | |
| 2017,5.77,5.67 | |
| 2016,5.7,5.6 | |
| 2015,5.64,5.54 | |
| 2014,5.58,5.49 | |
| 2013,5.51,5.44 | |
| 2012,5.45,5.39 | |
| 2011,5.39,5.35 | |
| 2010,5.33,5.3 | |
| 2009,5.27,5.25 | |