N, RMSE, Max 4,2.4607,4.9513 6,1.3346,2.5229 8,1.1299,2.1851 10,0.99564,2.1763 12,0.32389,1.3151 14,0.20181,0.89274 16,0.093589,0.41559 18,0.055405,0.27247 20,0.024312,0.11968 22,0.014178,0.073776 24,0.005759,0.027967 26,0.0040861,0.020335 28,0.0011908,0.0043999 30,0.0014404,0.0073694