condition	mean	min	max
4 h after light	8592.9	8592.9	8592.9
8 h after light	8543.35	8227.7	8859.0
12 h after light	7713.4	7343.9	8082.9
4 h after dark	6288.05	5216.6	7359.5
8 h after dark	8133.5	6957.2	9309.8
12 h after dark	9187.25	8573.3	9801.2