condition	mean	min	max
4 h after light	644.6775	625.312	664.043
8 h after light	490.9745	490.739	491.21
12 h after light	424.475	390.0	458.95
4 h after dark	629.798	606.272	653.324
8 h after dark	636.168	634.214	638.122
12 h after dark	658.951	641.193	676.709