Children fully immunised at the age of 18 months in the Northland DHB, New Zealand
Year ended June 2016–2024, % of children within group
| Year ended June | % of children within group  | 
            
            
|---|---|
| 2016 | 80.34376377259% | 
| 2017 | 77.74336283186% | 
| 2018 | 74.05449369662% | 
| 2019 | 71.79595278246% | 
| 2020 | 71.26977340744% | 
| 2021 | 57.71428571429% | 
| 2022 | 50.7% | 
| 2023 | 49.1% | 
| 2024 | 47.5% |