Hint:

1,00 EUR
0,20 EUR per
excl. Shipping costs

1,00 EUR
0,20 EUR per
excl. Shipping costs
0,50 EUR
excl. Shipping costs
 
1,00 EUR
0,20 EUR per
excl. Shipping costs
1,25 EUR
0,13 EUR per
excl. Shipping costs
16 to 20 (from a total of 20)