condition	mean	min	max
4 h after light	17.8	17.8	17.8
8 h after light	29.0	12.2	45.8
12 h after light	67.35	54.8	79.9
4 h after dark	23.25	7.3	39.2
8 h after dark	28.3	21.0	35.6
12 h after dark	25.1	22.0	28.2