condition	mean	min	max
0 h after light	18.74995	17.9159	19.584
4 h after light	15.250399999999999	15.1789	15.3219
8 h after light	18.43645	17.532	19.3409
4 h after dark	19.769	19.2689	20.2691
8 h after dark	17.886850000000003	17.0564	18.7173
12 h after dark	17.41875	15.8583	18.9792