Question
Type
Mode/Year
Telephone


Mail


Web+Mail


Web+Mail
Choice
2006 2008 2006 2008 2010 2006 2008 2010 2010
Likert 0.4 0.6 1.9 1.8 2.4 2.4 1.7 2.6 2.4
Filter 0.2 0.4 2.1 1.3 0.9 2.4 1.4 2.7 2.7
Tabular 0.4 0.2 5.7 4.1 4.9 5.2 3.2 5.6 5.2
Open 3.0 2.6 7.2 5.5 3.2 6.3 4.3 4.1 4.3
Demo 2.3 4.1 3.7 3.7 4.0 4.1 3.6 4.3 3.3
Overall 0.8 0.9 3.8 3.0 3.5 3.8 2.6 4.1 3.9