Answer distribution
1.1.2018-26.6.2019Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
11.21.01.01.01.400000
229.726.026.330.033.700000
319.919.118.519.920.300000
431.230.929.932.928.000000
517.922.424.016.116.500000

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)