I hope your identical twin doesn't have diabetes

Take two monozygotic twins, one with diabetes, the other currently without. What's the probability the one without contracts it? "The observed rates of concordance for Type II diabetes at 1, 5, 10, and 15 years follow-up were 17, 33, 57, and 76%, respectively." and "The concordance rate for any abnormality of glucose metabolism (either Type II diabetes or impaired glucose tolerance) at 15 years follow-up was 96%."