condition mean min max 2 h after light 0.22809148333333334 0.0900349 0.390222 6 h after light 0.14149013333333332 0.0 0.417943 10 h after light 0.20466399999999998 0.0 0.472033 14 h after light 0.350139 0.190425 0.480217 18 h after light 0.38887116666666666 0.223361 0.64124 2 h after dark 0.259995 0.0 0.595163