Answer distribution
1.1.2019-14.6.2021Year 2021Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
130.419.725.034.337.736.900000
258.165.659.656.951.753.200000
36.28.26.76.06.44.800000
43.46.63.82.33.84.500000
50.30.01.00.00.40.600000

Choices for answers

  1. Never (value when calculating levels: -2.0)
  2. In some lessons (value when calculating levels: -1.0)
  3. In about half of lessons (value when calculating levels: 0.0)
  4. In most of lessons (value when calculating levels: 1.0)
  5. In almost every lesson (value when calculating levels: 2.0)