Bodyline Measurement Request

Heya all :)

I know Bodyline is sometimes a bit off with their measurements and garments can run smaller or larger, so I was wondering if anyone could help me out by giving me the realistic measurements of a few items. Centimetres or inches, I don't mind, I just would like to know the actual range of shirring.

http://www.bodyline.co.jp/bodyline/showProduct2.asp?id=6702&pageNumber=2&pageStop=stop_1&noSubType=N
http://www.bodyline.co.jp/bodyline/showProduct2.asp?id=6187&pageNumber=3&pageStop=stop_1&noSubType=N
http://www.bodyline.co.jp/bodyline/showProduct2.asp?id=6290&pageNumber=3&pageStop=stop_3&noSubType=N
http://www.bodyline.co.jp/bodyline/showProduct2.asp?id=6898&pageNumber=2&pageStop=stop_1&noSubType=N

What is the largest these skirts/JSKs can go to?

Thank you!