condition mean min max 0 h after light 1.446295 1.44501 1.44758 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.712395 0.0 1.42479 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0