condition	mean	min	max
4 h after light	30.77875	27.1973	34.3602
8 h after light	16.761899999999997	16.4626	17.0612
12 h after light	15.83495	14.5007	17.1692
4 h after dark	20.030366666666666	18.108	21.8237
8 h after dark	33.5175	32.3873	35.207
12 h after dark	27.831266666666664	26.9763	28.2745