polynomial fit: 1.033056 +- 0.017488 1.740036 +- 0.232731 3.703195 +- 0.820021 3.069267 +- 0.967989 5.389253 +- 0.343813 Chi-squared 107.806854 Legendre polynomial fit: 3.345296 +- 0.350307 3.581617 +- 0.792447 5.548350 +- 0.731828 1.227717 +- 0.387197 1.231825 +- 0.078586 Chi-squared 107.806862