Date: January 07, 2020 11:12AM
According to the Brisbane Times, arson accounts for over 100 of the Queensland fires alone.
"As firefighters remained on high alert, police revealed 103 of the destructive fires that had lashed Queensland since September were deliberately lit.
Figures obtained by AAP revealed police had dealt with 98 people - 31 adults and 67 juveniles - for deliberately setting fires."https://www.brisbanetimes.com.au/national/queensland/dozens-of-firebugs-blamed-for-destructive-queensland-fires-20191220-p53m1i.html
The article is dated December 20, so it may be even higher.