Diversity in the boardroom varies by both sector and country.  In Germany, for example, 18.5% of board seats are held by women, but only 8% of seats associated with Banks are taken by females.  In the US, 17.9% of Fortune 1,000 directors are female.

In Asia, female participation in the boardroom also varies.  Generally speaking, Vietnamese boardrooms are the most diverse with 25% of CEOs or Board Directors being female.  

Other interesting data in this article by Bloomberg  suggests that women in Vietnam are also far more focused on career progression than in other parts of the region, and are often more likely to believe it may be achieved without a change of employer.

An interesting read.