Sky Rider (Sky Rider ) gurgled happily, sounding
much like they were saying:

it turns out that until recently the patronage figures for KXSP were
artifically inflated - apparently you were recorded twice if you made a
deep-level - sub-surface interchange at KXSP, until of course
paid-side interchange routes were opened in October 2006.

That seems a VERY big decline, even considering that.

After all, correcting that double-count is only halving the number of
passengers who interchanged at KXSP for two to three of the twelve months
of the year - yet that's a drop of about 25% year-on-year. It plain don't
make sense, unless half of the total annual passenger throughput changed
trains there from October to December...?

I suspect a simple answer - I wonder how many people simply decided to
use other stations or avoid the area whilst the redevelopment chaos was
going on?