condition	mean	min	max
0 h after light	21.09975	20.8287	21.3708
4 h after light	17.27005	15.5695	18.9706
8 h after light	6.66147	6.22038	7.10256
4 h after dark	16.2003	16.0141	16.3865
8 h after dark	16.076	15.89	16.262
12 h after dark	24.142400000000002	24.1156	24.1692