| Year | Season Best | Age | vs Prior Year | % Change | |
|---|---|---|---|---|---|
| 2026 | 19.91 | — | -0.40 | -2.05% | |
| 2025 | 19.51 | — | +0.02 | +0.10% | |
| 2024 | 19.53 | — | -0.06 | -0.31% | |
| 2023 | 19.47 | — | -0.16 | -0.83% | |
| 2022 | 19.31 | — | +0.21 | +1.08% | PB |
| 2021 | 19.52 | — | +0.24 | +1.21% | |
| 2020 | 19.76 | — | -0.26 | -1.33% | |
| 2019 | 19.50 | — | +0.15 | +0.76% | PB |
| 2018 | 19.65 | — | +0.25 | +1.26% | PB |
| 2017 | 19.90 | — | +0.19 | +0.95% | PB |
| 2016 | 20.09 | — | +0.09 | +0.45% | PB |
| 2015 | 20.18 | — | +nan | +nan% | PB |