The premiums for each business year are determined by the Members Meeting. 
For the year 2016 they are as follows:

from (GT)to (GT)premium (Eur)
02.000440,--
2.0013.000600,--
3.0014.000820,--
4.0017.0001.420,--
7.00115.0001.580,--
15.00125.0001.740,--
25.001 1.800,--