The Australian Copyright Council has released the report it commissioned on the economic contribution of Australia's copyright industries from 2002 - 2014. The report has found that copyright industries continue to comprise a substantial proportion of the Australian economy. While the report takes into account the disruptive effects of digitisation, it states that copyright is a key piece of infrastructure that supports industries in a modern economy.
In 2014, copyright industries contributed $11.4 billion to the Australian economy. This is 7.1% of GDP and makes it the fourth biggest industry (up from 7th in a 2012 study).
The full report is available here: http://www.copyright.org.au/admin/cms-acc1/_images/1355629560553d73e0a5427.pdf