Li abundance as a function of age for solar twins in our sample, selected by ranges in effective temperature, log g, metallicity and mass (T_eff = T_eff,⊙± 90 K, log g = logg_⊙± 0.2, [Fe/H] = [Fe/H]_⊙ ± 0.11 and M = M_⊙ ± 0.05). The points are Li detections and the triangles represent upper limits. We see how Li seems to decrease with age very strongly, but the correlation shows considerable scatter which may be caused by measurement errors.