What's the most attractive waist to hip ratio for women?

I read it was 0.7, but mine is 0.67. Is that bad? I have a 34 inch bust, 26 inch waist, and 39 inch hips. Opinions (more on the ratio rather than my measurements in specific- I know it's hard to see)? Thanks.
What's the most attractive waist to hip ratio for women?
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