Energy Graph data and Report data different

My system was installed in Aug last year and due to a number of factors, not all GivEnergys, it has only been fully working a third of that time and completely since the middle of May. I've been tracking it's performance and there seems to be an anomaly with the Report Data and the Graph data on the dashboard.
For instance the Graph from the Dashboard for 3 Jul shows:
Solar Generated: 21.68 kWh
Consumed: 6.42 kWh
The Report for the same day shows:
Solar Generated: 25.03 kWh
Consumed: 12.11kWh

Although all fields vary these 2 vary the most.
Has anyone experienced the same or have an explanation?

You can get another number for Solar Generated by going to My Inverter, selecting the date, scroll along to METER DATA, and look at PV Generation Today.

Rubikcube Thanks, Inverter data supports graph data which begs the question where does the Report data come from?