condition	mean	min	max
4 h after light	5.8	5.8	5.8
8 h after light	13.35	11.5	15.2
12 h after light	18.45	7.4	29.5
4 h after dark	33.0	28.4	37.6
8 h after dark	20.2	2.8	37.6
12 h after dark	25.5	21.5	29.5