Answer distribution
1.1.2019-14.6.2021Year 2021Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
117.223.016.317.512.918.300000
255.849.264.456.155.455.900000
311.38.28.711.318.913.700000
411.014.85.811.38.28.200000
52.84.91.92.44.33.900000

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)