N, RMSE, Max 5,0.4486,0.67808 6,0.35101,0.64936 7,0.44784,0.67402 8,0.44944,0.68399 9,0.44157,0.66862 10,0.49194,1.1265 11,0.4365,0.6633 12,0.29182,0.57362 13,0.44497,0.65885 14,0.44706,0.65747 15,0.44595,0.65532