condition	mean	min	max
4 h after light	17.867449999999998	16.9912	18.7437
8 h after light	13.599	13.3291	13.8689
12 h after light	14.765799999999999	14.107	15.4246
4 h after dark	19.143666666666668	18.274	20.0304
8 h after dark	23.876733333333334	22.7095	25.3891
12 h after dark	21.3402	19.4962	22.4699