condition	mean	min	max
4 h after light	15.22734	7.33222	19.578
8 h after light	7.96737	2.84237	11.9202
12 h after light	9.74589	5.61642	16.089
4 h after dark	12.584293333333333	8.50868	17.0758
8 h after dark	13.849853333333332	7.59606	17.7654
12 h after dark	22.765733333333333	17.6588	26.4383