Annual – From minimum compulsory school age to 12 years – Bulgaria [A.CSA-Y12.BG]
- min:
- 10
- max:
- 25
- avg:
- 16
- σ:
- 4.809
| Period | Value | OBS_FLAG |
|---|
| 2006 | 20 | |
| 2007 | 20 | |
| 2008 | 20 | |
| 2009 | 21 | |
| 2010 | NA | u |
| 2011 | 25 | |
| 2012 | 20 | |
| 2013 | 20 | |
| 2014 | 10 | |
| 2015 | 15 | |
| 2016 | 10 | |
| 2017 | 15 | |
| 2018 | 10 | |
| 2019 | 10 | |
| 2020 | 10 | |
| 2021 | 15 | |
| 2022 | 15 | |