Indeed, but at that stage they were still armed largely with G88 and long bayonets I think. By 1908- 09 it was a fraction of that number of troops in GSWA and that is when I see the start of G98 and KS98 bayonets being issued. (Earliest KS98 I have seen is 1906, but most seem to be about 1912... and that was approval stamps in Germany, no sign that they were anywhere near africa in 1906)
I am betting the G98 and KS98 were limited to regular troops, and G88 for reserves... and seeing the relative shortage of rifles in Germany 1913-14 it is unlikely they had big stocks squirreled away in GSWA.
I think to get an accurate guestimate, of DSWA G98 and KS98 you simply need to look at the regular trrops effectives for 1914 and use it as a rough estimate
Best
Chris