Answer distribution
Year 2020Year 2019Year 2018Year 2017
110.033.332.221.9
25.06.75.14.1
385.060.062.774.0

Choices for answers

  1. No (value when calculating levels: -2.0)
  2. I don't know (value when calculating levels: -2.0)
  3. Yes (value when calculating levels: 2.0)