condition	mean	min	max
4 h after light	5.94747	5.5998	6.29514
8 h after light	7.257135	6.56804	7.94623
12 h after light	8.658755	8.15716	9.16035
4 h after dark	10.43205	10.3659	10.4982
8 h after dark	6.558375	6.36875	6.748
12 h after dark	6.843425	6.2562	7.43065