condition	mean	min	max
0 h after light	18.3597	18.1721	18.5473
4 h after light	15.5693	15.2179	15.9207
8 h after light	19.536099999999998	19.2197	19.8525
4 h after dark	16.482300000000002	15.1217	17.8429
8 h after dark	16.5036	15.9337	17.0735
12 h after dark	15.49015	15.3384	15.6419