How to change the colaxis in order to begin with a specific start date?

[pearson101]

Hello,

             I am look to create a sgpanel. I have the date in year/mon like '2017/01'.I have data some data from 2016, but I want what is shown  to begin at '2017/01' and the ticks show up by year from 2017 - 2020.  How can I achieve his result? This is the code I used:

proc x11 data = causerie_t_total_mean_all noprint;
monthly additive date = date;
id district;
var mean_malaria_rate;
tables a1 d12;
output out = test_all_mal a1 = mean_malaria_rate d12 = adj;run;

title 'Trend Line Time Series for the Average Number of Malaria Cases per 1000 Population in by District';
proc sgpanel data=test_all_mal;
panelby district / novarname ;
rowaxis label='Number of malaria cases per 1000';
vline date / response=mean_malaria_rate;
vline date / response=adj markers markerattrs=(color=blue symbol='circle') lineattrs=(color=blue) legendlabel="trend cycle";
colaxis fitpolicy=thin interval=YEAR;
run;

[ballardw]

You can use the Colaxis option VALUES=(<list goes here>) to specify the tick marks to display

So perhaps Values=('01JAN2017'd to '01JAN2020'd by year)