condition	mean	min	max
0 h after light	15.8318	15.0565	16.6071
4 h after light	30.0158	24.0873	35.9443
8 h after light	28.9914	27.5289	30.4539
4 h after dark	29.32645	28.3424	30.3105
8 h after dark	19.2807	18.9899	19.5715
12 h after dark	15.74125	13.9018	17.5807