The World Bank definition of “high income” has slipped, in relative terms, compared to high income countries in general
The United States has proposed that some (but no means all) IPR obligations involving medicines be modified for countries with incomes below the amount the World Bank defines as “high.” The threshold to be considered a high income country was $12,616 in per capita income for 2012, and is adjusted every year. In contrast, the US per capita income was $50,124 in 2012. (More data here)