condition	mean	min	max
0 h after light	13.44975	13.2021	13.6974
4 h after light	17.013550000000002	16.0515	17.9756
8 h after light	20.16485	19.459	20.8707
4 h after dark	20.8566	20.4764	21.2368
8 h after dark	20.914	20.6726	21.1554
12 h after dark	15.119	14.8083	15.4297