Glycated hemoglobin test values by year of cohort entry
| Year of cohort entry | N | Mean | SD | Median | Lower quartile | Upper quartile |
| 2011 | 1210 | 8.10% | 2.0 | 7.4% | 6.8% | 8.8% |
| 2012 | 2833 | 8.08% | 2.1 | 7.5% | 6.7% | 8.8% |
| 2013 | 9086 | 7.96% | 2.0 | 7.3% | 6.6% | 8.7% |
| 2014 | 12 119 | 8.01% | 2.0 | 7.4% | 6.6% | 8.8% |
| 2015 | 13 184 | 7.95% | 2.0 | 7.4% | 6.5% | 8.8% |
| 2016 | 14 738 | 7.94% | 2.1 | 7.4% | 6.5% | 8.8% |
| 2017 | 15 700 | 7.93% | 2.1 | 7.4% | 6.5% | 8.8% |
| 2018 | 17 384 | 7.90% | 2.0 | 7.3% | 6.6% | 8.6% |
| 2019 | 18 369 | 7.77% | 2.0 | 7.2% | 6.4% | 8.5% |
| 2020 | 16 684 | 7.87% | 2.2 | 7.3% | 6.4% | 8.8% |