In millions of euros First half of 2018 First half of 2017
     
Profit and loss account    
Revenues 671 740
EBITDA 440 519
EBIT 287 372
Result after taxation 234 291
     
Cash flow statement    
Cash flow from operating activities 360 442
Cash flow from investing activities  (168)  (92)
Cash flow from financing activities  (197)  (555)
Net cash flow  (5)  (206)
     
Non-financial key figures    
Transported volume (TWh) 588 593
Total reportable frequency index 2.3  4.0 
Pipeline damage incidents 2 1
Security of supply (cases of non- or late supply) 0 1

In miljoenen euro’s 30‑Jun 31-dec 2017*
  2018  
     
Balance sheet    
Fixed assets 9,579  9,604 
Equity 5,740  5,775 
Balance sheet total 9,830  9,852 
     
Financial key figures    
Invested capital 9,185  9,200 
Net debt 3,562  3,493 
     
Credit ratings    
Standard & Poor’s AA- AA-
Moody’s Investors Service A2 A2

*) Adjusted opening balance due to implementation of IFRS 15. Plese refer to "Basis of preparation" for further explanation