condition	mean	min	max
0 h after light	15.6341	12.7677	18.5005
4 h after light	7.30232	6.73698	7.86766
8 h after light	18.499	16.2459	20.7521
4 h after dark	30.857999999999997	26.6465	35.0695
8 h after dark	24.12675	24.0025	24.251
12 h after dark	18.1355	17.3729	18.8981