condition	mean	min	max
4 h after light	21.3266	19.3814	23.2718
8 h after light	21.88445	21.8599	21.909
12 h after light	17.66505	15.3511	19.979
4 h after dark	15.53725	14.8019	16.2726
8 h after dark	15.833499999999999	15.1633	16.5037
12 h after dark	19.72445	18.8487	20.6002