Answer distribution
1.1.2017-18.6.2019Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
191.8100.097.589.691.700000
24.70.01.34.57.300000
33.50.01.36.01.000000

Choices for answers

  1. No (value when calculating levels: -2.0)
  2. Yes, but only only lesson-like (value when calculating levels: 0.0)
  3. Yes, interactively with students (value when calculating levels: 2.0)