This figure shows the annual notification rate for chlamydial infection from 2009 to 2014, by sex, for the following selected age groups: 15–19 years, 20–24 years, 25–29 years, 30–34 years and 35–39 years. Overall, notification rates increased for these age groups over the six year period, with fluctuations over time in those aged 15–19 years.