condition	mean	min	max
0 h after light	9.680625	9.23485	10.1264
4 h after light	6.50601	5.88902	7.123
8 h after light	32.9882	31.6358	34.3406
4 h after dark	50.5392	49.0501	52.0283
8 h after dark	38.51775	38.1817	38.8538
12 h after dark	5.81678	4.41872	7.21484