condition	mean	min	max
0 h after light	17.491100000000003	16.6763	18.3059
4 h after light	21.9118	19.8085	24.0151
8 h after light	17.11355	14.1705	20.0566
4 h after dark	25.6443	25.5565	25.7321
8 h after dark	21.77245	21.307	22.2379
12 h after dark	19.6397	15.4107	23.8687