condition	mean	min	max
4 h after light	18.460908	16.903664	20.018152
8 h after light	13.67725	12.499576	14.854924
12 h after light	14.1697205	13.456134	14.883307
4 h after dark	14.233882000000001	13.61284	14.854924
8 h after dark	16.761502	14.854924	18.66808
12 h after dark	13.005455	13.005455	13.005455