Answer distribution
Year 2018Year 2017Year 2016Year 2015Year 2014Year 2013Year 2012
12.65.67.76.87.723.526.4
28.58.515.516.532.939.551.4
388.585.976.276.759.437.022.2

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