Help with Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : 0 (non-NA) cases

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I have converted it to a Numeric, ran your code and was successful, does the result below answer my question related to Natural and Physical Science that is Values~Annual.Unemployment + Field=="Natural and Physical Sciences")?
MODEL FIT:
F(1,8) = 4.70, p = 0.06
R² = 0.37
Adj. R² = 0.29

Standard errors: OLS

                            Est.     S.E.   t val.      p

(Intercept) 16764.25 522.51 32.08 0.00
Annual.Unemployment 211.19 97.37 2.17 0.06