Answer distribution
1.1.2019-9.11.2019Year 2020Year 2019Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
178.492.379.382.984.300000
212.75.112.915.311.100000
32.92.62.90.00.000000
42.00.02.10.61.400000
51.00.00.70.01.900000

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)