N, RMSE, Max 20,2.3742,5.1236 24,2.0741,5.1081 28,1.577,4.2588 32,0.8194,1.8383 36,0.41033,1.1037 40,0.17514,0.51619 44,0.076303,0.2313 48,0.051558,0.1429 52,0.040823,0.097416