Answer distribution
1.1.2018-18.6.2019Year 2021Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
171.660.663.266.273.274.800000
227.133.334.330.525.322.900000
30.96.10.42.10.91.100000
40.10.00.00.50.20.400000
50.10.00.00.00.20.400000

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)