Help me out here - on page 3 of the investor briefing, the first...

Help me out here - on page 3 of the investor briefing, the first chart is "Group ACV Growth".

Under the chart there is a split of US and AUD business results - in the small boxes below the chart.

As at June 30 2018, Australia has $48.8m ACV and US has $17.7m to give the total of $66.2m for the group ACV.

But the announcement, and the detail on the US business on page 4 says the US ACV is $12.9m.
And yet, the details for the Australian business on page 6, match the $48.8m.

Am I reading this wrong? What is US ACV?