condition	mean	min	max
4 h after light	8.425373333333333	8.32213	8.55325
8 h after light	7.985183333333333	7.897139999999999	8.11182
12 h after light	7.70844	7.526260000000001	7.83322
4 h after dark	8.02409	7.9138	8.17057
8 h after dark	8.686366666666668	8.48638	8.823160000000001
12 h after dark	9.063456666666667	8.85294	9.18179