There is a lot of wiggle room to be changed.
You will be required to enter the weight and dimensions for all of your Canadian parcels or thick envelopes.
Chinese borders are literary closed.
Apparently it never occurred to Beijing that the local housing bubble for example - the biggest in Chinese history - may have a far greater role in making "discretionary" spending - such as more children for example - impossible as the simplest of staples cost an arm and a kidney and apparently a second and first child.
I still remember UN's prognostic report I read around 2012 or 13, that by the year 2020 China will have 300 million English language students.