condition	mean	min	max
4 h after light	76.5	76.5	76.5
8 h after light	61.55	51.0	72.1
12 h after light	85.6	66.0	105.2
4 h after dark	18.6	18.4	18.8
8 h after dark	60.3	42.6	78.0
12 h after dark	30.7	13.5	47.9