condition	mean	min	max
4 h after light	13.163070000000001	8.94844	17.3777
8 h after light	3.861765	2.17501	5.54852
12 h after light	16.496499999999997	12.5229	20.4701
4 h after dark	20.37425	19.8523	20.8962
8 h after dark	48.39975	47.5933	49.2062
12 h after dark	15.038899999999998	13.6366	16.4412