This line graph displays the proportion of all influenza hospitalisations which were coded as virologically-confirmed (J09 and J10 ICD codes) for age bands: 0-5 months, 6-23 months, 2-4 years, 5-11 years, 12-17 years, 18-24 years, 25-49 years, 50-64 years, 65-74 years, and 75 years or over by year, for the period 2006-2013. All age bands have shown a progressive increase in this proportion to be above 90% by 2013. The rise has been most marked in those aged 12 years or over. There was a dip in this proportion during 2009 for all age ranges.