condition mean min max 3 h after light 0.023729533333333334 0.0 0.0711886 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0627725 0.0 0.13288 3 h after dark 0.3373368 0.0733034 0.645479 6 h after dark 0.08767633333333333 0.0 0.189989 9 h after dark 0.1701513 0.0947639 0.21541 12 h after dark 0.270434 0.145191 0.395677