condition	mean	min	max
0 h after light	18.8291	18.3881	19.2701
4 h after light	31.2369	29.6042	32.8696
8 h after light	31.7252	29.7435	33.7069
4 h after dark	25.42035	22.2197	28.621
8 h after dark	23.67235	23.6032	23.7415
12 h after dark	20.3658	19.5995	21.1321