Annual injury incidence (per 100,000 population) for specific knee injuries diagnosed in Australian hospitals in individuals aged 5 years and older from 1998-1999 to 2017-2018. Circles, annual knee injury incidence; solid line and shaded region, negative binomial regression model and 95% confidence interval, dashed and dotted lines, extrapolated negative binomial regression model and 95% confidence interval. Note the x-axis value indicate the index year i.e., 2000 represents from July 2000 to June 2001.