condition	mean	min	max
4 h after light	45.76885	42.9711	48.5666
8 h after light	55.2993	53.1939	57.4047
12 h after light	87.362	81.0236	93.7004
4 h after dark	39.5596	38.5758	40.5434
8 h after dark	37.87905	37.4471	38.311
12 h after dark	38.6644	35.8868	41.442