condition	mean	min	max
4 h after light	16.62888888766667	8.693333333	27.01
8 h after light	25.08777778	22.44666667	30.31666667
12 h after light	26.59222222	17.32	41.94333333
1.5 h after dark	25.102222223333335	14.01	39.02
5.5 h after dark	15.11	12.54333333	17.93
9.5 h after dark	15.381111109999999	10.28	19.11