<chart caption='Region 1' xAxisName='' PYAxisName=' ' yAxisName='' bgColor='ffffff' showBorder='0' enableSmartLabels='1' isSmartLineSlanted='1' showValues='1' canvasPadding='20' formatNumberScale='0'>

    <set label= '1970 Survey' value = '1090'/>
    <set label= '1977 Survey' value = '6688'/>
    <set label= '1987 Survey' value = '13016'/>
    <set label= '2001 Survey' value = '17346'/>
    <set label= '2009 Survey' value = '25772'/>
    <set label= '2015 Survey' value = '25772'/>
</chart>
