My suspicion is that most of the "lines changed" of Fortran were in BLAS, LAPACK etc bindings for Python, R, Julia. Perhaps even just the same commits replicat

My suspicion is that most of the "lines changed" of Fortran were in BLAS, LAPACK etc bindings for Python, R, Julia. Perhaps even just the same commits replicated in lots of people's forks of (say) scipy -- do they control for this? what about rebases of the same commit?