condition	mean	min	max
4 h after light	150.8	150.8	150.8
8 h after light	114.65	93.7	135.6
12 h after light	105.25	93.8	116.7
4 h after dark	87.8	87.0	88.6
8 h after dark	80.35	79.0	81.7
12 h after dark	84.0	80.6	87.4