Answer distribution
1.1.2018-18.6.2019Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
119.920.218.319.321.800000
235.731.931.536.639.000000
313.612.313.513.713.500000
416.418.219.116.414.100000
513.816.717.113.411.200000

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)