Answer distribution
1.1.2018-18.6.2019Year 2021Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
16.47.87.04.76.86.500000
270.774.071.667.871.371.600000
312.310.49.515.411.010.500000
48.17.86.69.78.78.300000
51.70.03.71.91.52.300000

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)