condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.14711133333333334 0.0 0.441334 12 h after light 0.046128 0.0 0.138384 4 h after dark 0.08355323333333334 0.0 0.173408 8 h after dark 0.08574233333333332 0.0 0.257227 12 h after dark 0.237399 0.0 0.407444