There are still 29% unanswered questions right now.
Based on my observation, there are numbers of questions which have good answers, but as there are no upvotes on these answers or the author don't accept these answers(maybe they never come to DS SE again?), these questions are classified as "unanswered".
I'm wondering if we can try to sanitizing these questions by upvoting these good answers? I don't know if it's allowed in SE, but I think good answers deserve upvotes, and increasing answered rate is just a bonus.