condition	mean	min	max
0 h after light	19.30555	18.4174	20.1937
4 h after light	25.5178	23.9999	27.0357
8 h after light	24.06475	21.837	26.2925
4 h after dark	32.02095	31.9371	32.1048
8 h after dark	24.4891	21.8438	27.1344
12 h after dark	22.8684	20.1219	25.6149