Switzerland: Polling institutes at a glance

Which polling institute is the most accurate?

Institute Accuracy Polls
0.5 1
0.5 1
3
0.6 1
4
0.6 3
5
1.8 9

How was the accuracy calculated?

To calculate the accuracy, we compared an institute's last election poll before an election with the actual election result. The difference was determined for each party - the lower the average deviation, the more accurate the values of an institute. In each case, the last poll of an institute in the period of 2 weeks before an election is taken into account.