condition	mean	min	max
4 h after light	16.45865	15.2375	17.6798
8 h after light	17.435000000000002	16.5852	18.2848
12 h after light	18.56285	18.2728	18.8529
4 h after dark	23.806266666666666	22.8056	25.2958
8 h after dark	29.509	27.8663	30.3732
12 h after dark	20.5363	17.6688	22.1656