condition	mean	min	max
4 h after light	18.0791435	17.383793	18.774494
8 h after light	16.1569015	13.539309	18.774494
12 h after light	15.546265	15.279077	15.813453
4 h after dark	34.003607	18.395405	49.611809
8 h after dark	42.4468765	18.475662	66.418091
12 h after dark	18.261237	18.261237	18.261237