condition	mean	min	max
0 h after light	29.3549	28.5363	30.1735
4 h after light	23.37585	18.5154	28.2363
8 h after light	21.042099999999998	20.3189	21.7653
4 h after dark	19.800800000000002	16.924	22.6776
8 h after dark	18.04845	17.3938	18.7031
12 h after dark	20.58915	18.1395	23.0388