I think there are two important pieces of context that are important to understand.
One is that the withdrawal procedures you see in the articles of agreement of the institution mirror withdrawal procedures from various other multilateral development banks of this type. Those procedures have been used only twice in my knowledge. Cuba withdrew from the World Bank and the IMF in the mid-1960s. I believe France withdrew from the Caribbean Development Bank about 23 years ago.
The reason I provide that context is to say that there is a lot of untested legal ground with respect to the withdrawal of any member from the AIIB or other institutions. With respect to the six-month provision that is in the articles of agreement, it is intended to provide a protection to all shareholders and the institution itself: If the institution were to face financial difficulty, members would not be able to instantly withdraw and therefore forgo their share of those financial difficulties, which are hypothetical.
The AIIB, in this case, is an AAA-rated financial institution, from all three major debt rating agencies. I think the question of that issue of what we would be liable for is a hypothetical question. It is not relevant in the current context.