condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.008422 0.0 0.016844 12 h after light 0.0 0.0 0.0 4 h after dark 0.012181733333333333 0.0 0.0240721 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0038104333333333334 0.0 0.0114313