condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.23071999999999998 0.153271 0.385611 6 h after dark 0.073106 0.0 0.219318 9 h after dark 0.196641 0.112601 0.279179 12 h after dark 0.0 0.0 0.0