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 0.024075166666666665 0.0 0.0722255 12 h after light 0.0485458 0.0 0.135964 3 h after dark 0.0 0.0 0.0 6 h after dark 0.043199666666666664 0.0 0.129599 9 h after dark 0.032321133333333335 0.0 0.0969634 12 h after dark 0.0 0.0 0.0