0.09 0.08 0.07 ◆一平均 晋-Lowest10% poverty 米-lower10% 0.06 -米-lower middle ●-middle -upper middle high 0.05 highest 0.04 0.03 1997 1998 2000 2001 2003 2004 2005 2006 2007 2008 2009 2010 Page 8Page 8 0.03 0.04 0.05 0.06 0.07 0.08 0.09 1997 1998 2000 2001 2003 2004 2005 2006 2007 2008 2009 2010 坐 标 轴 标 题 平均 Lowest 10% poverty lower 10% lower middle middle upper middle high highest