condition	mean	min	max
0 h after light	17.8275	17.2718	18.3832
4 h after light	12.91165	12.022	13.8013
8 h after light	21.83165	18.922	24.7413
4 h after dark	25.00845	23.7086	26.3083
8 h after dark	24.7179	24.2833	25.1525
12 h after dark	19.9342	19.6252	20.2432