How to specify X-axis values using SG scatter

[LB1993]

I would like to specify the X-axis values for the figure in the code below, but for some reason it doesn't work and provides an X-axis tick increment of 40 instead of 10. Any idea what I'm doing wrong?

PROC SGPLOT DATA = test;
SCATTER Y = food_group X = mean_diff / GROUP = ses_com GROUPDISPLAY=CLUSTER CLUSTERWIDTH = 0.7
Xerrorlower = CI_diffLower Xerrorupper = CI_diffUpper;
XAXIS
VALUES=(-200 to 200 by 10)
LABEL = "Difference in mean (mean and 95% CI means)"
LABELATTRS = (size = 8pt family = "Times New Roman Uni")
VALUEATTRS = (size = 8pt family = "Times New Roman Uni")
;
YAXIS
LABEL = " " /*A single space as x-axis labels with big font size to produce enoug space*/
LABELATTRS = (size = 8pt family = "Times New Roman Uni") /*x-axis label font definition*/
VALUEATTRS = (size = 8pt family = "Times New Roman Uni")
GRID
;
REFLINE 0 /
AXIS = X
LINEATTRS =(THICKNESS = 1 COLOR = DAGRB pattern = shortdash)
;
KEYLEGEND /
NOBORDER
TITLE = ""
VALUEATTRS = (size = 8pt family = "Times New Roman Uni") /*Legend font definition*/
;
TITLE " ";
RUN;

[LB1993]

Solution found:  I had to increase the size of the plot.