From 1994 onwards, the CHON and BANH position solutions
resulted in up to 10 year long position time series in ITRF2005. The
1994–2004 station velocities were extracted by linear regression,
which implies steady-state motion (which of course is no longer a
valid assumption after the 2004 Mw 9.2 earthquake). This was
verified by analyzing the misfits with respect to the linear trends.
Mostly small offsets were observed, and overall the 3D RMS values are
3, 4 and 5–13 mm in north, east and up, respectively.