Key operating and financial figures

2016 2015 2014 2013 2012 2011 2010 2009 2008 2007
Operating data (1)  
Primary aluminium production (Kt)  3,685 3,645 3,601 3,857 4,173 4,123 4,083 3,946 4,424 4,202
Alumina production (Kt)  7,536 7,402 7,253 7,310 7,477 8,154 7,840 7,278 11,317 11,347
Bauxite mined (Mt Wet)  12.187 12.112 12.108 11.876 12.365 13.5 11.8 11.3 19.1 18.5
Financial data (m US$)  
Revenue  7,983 8,680 9,357 9,760 10,891 12,291 10,979 8,165 15,685 13,588
Adjusted EBITDA (2)  1,489 2,015 1,514 651 915 2,512 2,597 596 3,526 4,620
Net Income  1,179 558 (91) (3,222) (528) 237 2,867 821 (5,984) 2,806
Certain non-IFRS measures  
Aluminium cash operating costs (US$/t)(3)  1,333 1,455 1,729 1,907 1,946 1,984 1,693 1,471 1,915 1,778
Net Debt (m US$) (4)  8,421 8,372 8,837 10,109 10,829 11,049 11,472 13,633 13,170 8,395
Note:
  1. (1) Figure based on total attributable output.
  2. (2) Adjusted EBITDA is calculated as results from operating activities adjusted for amortisation and depreciation, impairment charges and loss on disposal of property, plant and equipment.
  3. (3) Based on IFRS Financial Statements for 2010-2011 and on management accounts for 2006-2009
  4. (4) For all periods presented, Net Debt is calculated as Total Debt less cash and cash equivalents as at the end of the period. Total Debt means the Company’s loans and borrowings at the end of the period.