Answer distribution
Year 2016Year 2015Year 2014Year 2013Year 2012
18.24.111.123.931.5
210.510.524.635.743.1
380.885.064.140.425.4

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