Improve statistics available

Please improve statistics available for questions right/wrong. Right now, if you repeat questions, the percent correct changes - it would be better if we could see a first-pass score and repeat scores separately. It would also be beneficial to see how our peers scored on a question set overall, not only on individual questions. Also, in the newer version that is coming out soon, the break down of the questions "learning, building, reliable, durable" should not be based on individual questions but on topic. For example, all questions about measles should be grouped together to determine what stage you're in.