condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.038032333333333335 0.0 0.114097 12 h after light 0.024996633333333334 0.0 0.0749899 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0