Answer distribution
1.1.2018-11.1.2019Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
19.010.80.09.04.400000
234.848.6100.034.835.600000
315.712.20.015.78.900000
420.216.20.020.231.100000
519.112.20.019.120.000000

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)