Answer distribution
Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
14.94.99.27.915.130.335.4
212.610.913.712.729.139.243.8
382.183.876.478.855.430.420.8

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)

The question affects following sections