How much of this is convergence due to the addition of much poorer Central, Eastern, and Southern Europe - especially because this is "per capita"? Edit: looki

How much of this is convergence due to the addition of much poorer Central, Eastern, and Southern Europe - especially because this is "per capita"? Edit: looking at the source dataset, it is just convergent growth from Central, Eastern, and Southern Europe. Those EU countries that were already developed countries in the 2000s grew well below the average excluding Ireland, Sweden, and Germany.