condition	mean	min	max
0 h after light	8.03223	6.79479	9.26967
4 h after light	19.81795	19.3509	20.285
8 h after light	23.47745	23.2447	23.7102
4 h after dark	22.365499999999997	19.5403	25.1907
8 h after dark	15.9819	14.5955	17.3683
12 h after dark	13.112365	7.45093	18.7738