condition	mean	min	max
0 h after light	6.70502	6.68811	6.72193
4 h after light	3.858	3.33627	4.37973
8 h after light	5.509895	5.24787	5.77192
4 h after dark	5.691425	5.23016	6.15269
8 h after dark	5.338135	4.95394	5.72233
12 h after dark	6.81748	6.62157	7.01339