CONFIDENTIAL
2
3. (contd)
the overall picture of net movement across the border can be distorted by the choice of period. I decided it would be misleading to give N C N A only the 1974- 1978 overall figures (which would not have needed the qualifying footnotes due to the fact that before 1974 separate statistics were not kept for all categories of travellers at Lowu) since this could have appeared deliberately to omit 3 years (1971-73) in which there was a net outflow of 42,110 re-entry permit holders to China.
:
CONFIDENTIAL