condition	mean	min	max
4 h after light	12.194299999999998	10.8761	13.5125
8 h after light	11.7843	10.6701	12.8985
12 h after light	12.16745	11.9006	12.4343
4 h after dark	19.54703333333333	16.2015	24.2975
8 h after dark	16.6312	14.6831	19.7948
12 h after dark	16.958466666666666	14.4442	18.4004