經濟發展 政治民主化 識字率 平均國民生產毛額 大專以上程度之人口比率 第三產業的人口比率 自由民主選舉的特徵 政府職位開放選舉的程度 Economic development Political democratization Percentage of literacy Per capita GNP Percentage of population with college degree or above Percentage of population in tertiary industry Characteristic of democratic election and official positions open to elections