How to set start values for chart axis

DonFreeman

When my chart displays (see code below) it automatically decides what value to use as the minimum or start value for the y axis. Is there a way I can force it to always start at zero (0)?

Thanks

<toolkit:Chart x:Name="MyChart2"
            Title="Average Daily Traffic" 
          esri:GraphicsLayer.MapTipHideDelay="0:0:3" 
          Background="LightGray"  
          LegendStyle="{StaticResource BlankLegendStyle}" 
          TitleStyle="{StaticResource SmallTitleStyle}"          
          Height="225"
          Width="330">
       
       <toolkit:Chart.Series>
        <toolkit:ColumnSeries Title="ADT" IndependentValueBinding="{Binding Attributes[_year]}" 
                                                  DependentValueBinding="{Binding Attributes[adt]}">
         <toolkit:ColumnSeries.DataPointStyle>
          <Style TargetType="toolkit:DataPoint">
           <Setter Property="Template">
            <Setter.Value>
             <ControlTemplate TargetType="toolkit:ColumnDataPoint">
              <Grid Background="#FF51626F">
               <TextBlock Text="{TemplateBinding FormattedDependentValue}" 
                                                                   FontWeight="Bold" FontSize="8" 
                                                                   HorizontalAlignment="Stretch"
                                                                   TextAlignment="Center" />
              </Grid>
             </ControlTemplate>
            </Setter.Value>
           </Setter>
          </Style>
         </toolkit:ColumnSeries.DataPointStyle>
        </toolkit:ColumnSeries>
       </toolkit:Chart.Series>
      </toolkit:Chart>