The given map shows each voivodships relative level of welfare, measured by GDP capita, as a percentage of the national level. Regions falling into the latter "B" category (income group three) are regarded as the comparatively less developed areas of the country and are shaded in light grey. The results provided are based on sixteen voivodships whose number was reduced in 1999 from forty-nine and which became self-administrative (Hagbart, 2000).