condition	mean	min	max
4 h after light	7160.7	7160.7	7160.7
8 h after light	6953.4	6729.2	7177.6
12 h after light	6232.0	6083.2	6380.8
4 h after dark	8219.6	6111.7	10327.5
8 h after dark	9672.3	8320.9	11023.7
12 h after dark	10150.0	9709.3	10590.7