How do I add specific sections in figures ?

[_sba_]

Hi, any idea how can I do to program the below in SAS ? I mean, the sections in yellow and red that are based on 'y' values of 54 mg/dL, 70 mg/dL, 180 mg/dL and 250 mg/dL ?

Any advice is welcome!

Thanks!

[PGStats]

An example:

data graph;
set sashelp.stocks;
where stock="IBM"; 
v6min=min(6000000, volume);
v12max=min(15000000, max(volume, 12000000));
v15max=max(15000000, volume);
run;

proc sgplot data=graph noautolegend;
series x=date y=volume;

band x=date lower=v6min upper=6000000 / 
    fillattrs=(color=green) nooutline noextend;
band x=date lower=12000000 upper=v12max / 
    fillattrs=(color=yellow) nooutline noextend;
band x=date lower=15000000 upper=v15max / 
    fillattrs=(color=red) nooutline noextend;

refline 6000000 12000000 15000000/ axis=y label=("Low" "Mid" "High") labelloc=inside;
xaxis offsetmax=0.1;
quit;

[_sba_]

thanks a lot really helpful ! Many thanks !