Evolution of the estimated global parameter g₀ = γ − 1 (where γ is the PPN parameter) as a function of the iteration number. g₀ settles at a level of 2.6 × 10^-5 from a starting value of g₀ = 0.1. The formal uncertainty of g₀ in this solution is 2.15 × 10^-5. Note that a linear scale is used for |g₀| < 10^-4 (the grey area), while a logarithmic scale is used outside of this interval.