condition	mean	min	max
4 h after light	8.241435	8.01435	8.46852
8 h after light	10.127175000000001	9.18915	11.0652
12 h after light	17.18095	16.3719	17.99
4 h after dark	18.714	17.9955	19.4325
8 h after dark	16.6817	15.5726	17.7908
12 h after dark	13.55115	13.0336	14.0687