condition	mean	min	max
2 h after light	19.37935	14.9072	23.5791
6 h after light	14.77465	12.29	17.6629
10 h after light	13.10823	8.59568	16.4741
14 h after light	13.914525000000001	9.56485	18.7879
18 h after light	14.779733333333333	10.0625	18.2989
2 h after dark	16.781866666666666	15.2098	19.1667