condition	mean	min	max
0 h after light	20.3016	19.237	21.3662
4 h after light	23.1715	18.4016	27.9414
8 h after light	37.4363	36.2673	38.6053
4 h after dark	41.8729	36.1821	47.5637
8 h after dark	18.6958	18.4818	18.9098
12 h after dark	17.5833	17.3253	17.8413