I've got a couple of graphs to accompany my story on flu cases so far this year. I couldn't get them to work online. Click the graphs to enlarge them.
The first graph shows the number of new laboratory-confirmed flu cases each month since 2008. You can see a definite pattern, with cases peaking during the winter months and falling off during summer.
The worst month over this time for cases was July 2009. In that month alone - at the height of fears about swine flu - there were 30,000 confirmed flu cases. August last year was also a bad month, with about 27,000.
While numbers for this year so far do not compare with the height of flu season, there have been more cases in 2015 between January and May than in any other year.
There haven't been any changes to data collection over the seven years I have graphed, but keep in mind that it all depends on people with flu symptoms seeing their GP in the first instance.
A Health Department spokeswoman said: "The quality and completeness of data compiled in the National Notifiable Diseases Surveillance System (NNDSS) are strongly influenced by the healthcare seeking behaviours of patients, testing and notification practices and follow-up by jurisdictional health departments. Pandemics and other events can influence these behaviours and factors."