General relativity predicts a constant gravitational deflection of starlight grazing the Sun: 1.75 arcseconds. Compiling historical total solar eclipse measurements from 1922 to 2017, we find significant variation in the measured deflection: 1.72 (1922), 1.82 (1929), 1.70 (1936), 2.01 (1947), 1.70 (1952), 1.66 (1973), 1.78 (1991), and 1.75±0.02 (2017). The 1947 measurement (2.01 arcseconds) coincides with a solar activity maximum (annual Wolf number 159.2), while the 2017 measurement (1.75±0.02 arcseconds) coincides with a minimum (Wolf number 19.3). This correlation — higher deflection during higher coronal density — is inconsistent with a constant gravitational deflection but is naturally explained by the Density-Refraction Law: light bends in a density gradient of the KuiQuark Sea medium. The deflection angle scales as θ = κ ∫ (∇ρ_KQ) ds, where ρ_KQ is the density of the KuiQuark Sea. We predict that future eclipses during solar maxima will continue to show enhanced deflection (1.80-1.85 arcseconds, depending on the activity level), while minima will show deflection consistent with the baseline (<1.70 arcseconds). This paper is part of the XLG-CM series (XLG Cosmology — Celestial Motion).