condition	mean	min	max
0 h after light	18.15535	17.9939	18.3168
4 h after light	7.2541400000000005	6.21006	8.29822
8 h after light	13.81305	12.4081	15.218
4 h after dark	17.27525	16.3081	18.2424
8 h after dark	16.501350000000002	15.7573	17.2454
12 h after dark	15.550450000000001	13.2278	17.8731