condition	mean	min	max
4 h after light	20.356749999999998	18.2008	22.5127
8 h after light	14.96495	14.2239	15.706
12 h after light	18.426099999999998	16.4192	20.433
4 h after dark	22.64905	22.0291	23.269
8 h after dark	20.387700000000002	19.8764	20.899
12 h after dark	23.651049999999998	23.4904	23.8117