A recent study found no evidence of seasonal affective disorder in Iceland where the sun does not appear for a long time in the winter.
Icelanders have higher light bills.
( z1 have :ARG0 ( z2 person :mod ( z3 country :name ( z4 name :op "Iceland" ) ) ) :ARG1 ( z5 bill :mod ( z6 light ) :ARG1-of ( z7 have-degree :ARG2 ( z8 high :ARG1 z5 ) :ARG3 ( z9 more ) ) ) )