polynomial fit: 1.033057 +- 0.017488 1.740037 +- 0.232731 3.703174 +- 0.820020 3.069299 +- 0.967989 5.389237 +- 0.343813 Chi-squared 107.806900 Legendre polynomial fit: 3.345273 +- 0.350307 3.581669 +- 0.792448 5.548301 +- 0.731829 1.227745 +- 0.387197 1.231820 +- 0.078586 Chi-squared 107.806900