condition	mean	min	max
4 h after light	8.44067	8.06282	8.81852
8 h after light	6.828250000000001	6.60276	7.05374
12 h after light	8.220635	7.93759	8.50368
4 h after dark	14.7951	11.7454	17.8448
8 h after dark	11.4192	11.3364	11.502
12 h after dark	10.654554999999998	9.87441	11.4347