condition	mean	min	max
4 h after light	33.67085	31.4322	35.9095
8 h after light	15.15955	14.4894	15.8297
12 h after light	9.637775000000001	9.07545	10.2001
4 h after dark	13.9282	13.4691	14.3873
8 h after dark	27.519199999999998	26.7239	28.3145
12 h after dark	34.13425	30.401	37.8675