condition	mean	min	max
0 h after light	15.4739	12.8899	18.0579
4 h after light	26.10895	24.3182	27.8997
8 h after light	7.480565	7.27296	7.68817
4 h after dark	1.78357	1.68799	1.87915
8 h after dark	3.634255	3.40052	3.86799
12 h after dark	23.1902	17.2159	29.1645