Answer distribution
1.1.2019-20.9.2020Year 2021Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
152.780.059.949.361.355.600000
215.811.415.516.316.516.400000
36.10.05.46.35.77.200000
412.98.610.713.99.711.300000
511.80.07.013.86.49.300000

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)