Hi, Natalie, I might be able to help here.
I agree with your comprehension of the question "How common is investing in shares in your country?".
I feel the answer to that question would be more to do with the prevalence of the general public's participation in the share/stock market.
However, the answer might extend to whether the investment is by the general public, i.e., everyday mum-and-dad investor, or by company/corporate, i.e., large superannuation companies, funds management companies.
This to some degree would also clarify/highlight the popularity of investing in the share market in that country.
Hope this helps.
提问者对于答案的评价:Thank you for you explanation,It do have me a lot.
wish you a good day:)