condition	mean	min	max
4 h after light	19.8581	18.8363	20.8799
8 h after light	13.3417	12.891	13.7924
12 h after light	12.81295	12.5521	13.0738
4 h after dark	18.619633333333333	17.6592	19.2743
8 h after dark	25.236800000000002	23.786	27.707
12 h after dark	22.87076666666667	22.2345	23.5985