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