condition mean min max 2 h after light 0.631931 0.207796 1.39784 6 h after light 0.9001115 0.310587 1.27602 10 h after light 0.9866334999999999 0.543525 1.90254 14 h after light 1.3897278333333334 0.603347 2.81657 18 h after light 1.1433443333333333 0.110618 2.00362 2 h after dark 0.9202325 0.104702 2.54776