condition	mean	min	max
4 h after light	17.6	17.6	17.6
8 h after light	23.3	3.1	43.5
12 h after light	51.3	49.1	53.5
4 h after dark	35.05	21.5	48.6
8 h after dark	25.6	17.8	33.4
12 h after dark	24.15	16.8	31.5