Answer distribution
1.1.2013-23.8.2019Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
117.64.312.320.016.400000
261.273.959.862.260.200000
39.18.711.58.110.500000
48.18.77.47.47.000000
53.64.39.02.25.300000

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)