a=pan,b=pan,sum=0.34679014
a=pan,b=wye,sum=0.50262601
a=eks,b=pan,sum=0.75867996
a=eks,b=wye,sum=0.38139939
a=eks,b=zee,sum=0.61178406
a=wye,b=wye,sum=0.20460331
a=wye,b=pan,sum=0.57328892
a=zee,b=pan,sum=0.52712616
a=zee,b=wye,sum=0.59855401
a=hat,b=wye,sum=0.03144188
