The stats seem to be for starts from the gate...

Racenet barrier trends for EAGLE FARM
Statistics from August 1, 1996.
1400m
1=10%; 2=9%; 3=8%; 4=9%; 5=9%; 6=6%; 7=8%; 9=11%; 10=8%; 11=9%; 12=6%; 13=3%; 14=6%; 15=10%; 16=6%; 17=4%; 18=0%; 19=0%; 20=0%