The greenhouse gas indicators link in the 2016 Annual Integrated Report - Extra-financial Statements supplement reports the following breakdown of CO2 equivalent (Mt) emissions:
Carbon dioxide - 8.43
Methan - 0.81
Nitrous Oxide - 0.20
Sulfur hexafluoride - 0.05
Hydro fluoro carbons - 0.05
Per fluoro carbons - 1.34
TOTAL - 10.88 million tonnes CO2 eq. (rounded to 10.9m).