Selected financial data of the Group

millions of €
    Q2 2017 Q2 2016 Change % H1 2017 H1 2016 Change % FY 2016
Revenue and earnings                
Net revenue   18,890 17,817 6.0 % 37,537 35,447 5.9 % 73,095
Of which: domestic % 31.9 34.0   32.3 34.3   33.7
Of which: international % % 68.1 66.0   67.7 65.7   66.3
Profit from operations (EBIT)   2,830 1,546 83.1 % 5,601 6,071 (7.7) % 9,164
Net profit (loss)   874 621 40.7 % 1,621 3,746 (56.7) % 2,675
Net profit (loss) (adjusted for special factors)   1,199 1,054 13.8 % 2,138 2,101 1.8 % 4,114
EBITDA   5,986 4,697 27.4 % 11,949 12,364 (3.4) % 22,544
EBITDA (adjusted for special factors)   5,944 5,457 8.9 % 11,495 10,620 8.2 % 21,420
EBITDA margin (adjusted for special factors) % 31.5 30.6   30.6 30.0   29.3
Earnings per share basic/diluted 0.19 0.13 46.2 % 0.35 0.81 (56.8) % 0.58
Statement of financial position                
Total assets         141,490 143,466 (1.4) % 148,485
Shareholders_ equity         38,594 36,968 4.4 % 38,845
Equity ratio %       27.3 25.8   26.2
Net debt         55,249 48,692 13.5 % 49,959
Cash flows                
Net cash from operating activities   4,204 3,931 6.9 % 8,559 7,427 15.2 % 15,533
Cash capex   (10,240) (2,703) n. a. (13,520) (6,599) n. a. (13,640)
Free cash flow (before dividend payments and spectrum investment)   1,301 1,320 (1.4) % 2,530 2,142 18.1 % 4,939
Net cash used in investing activities   (7,212) (2,229) n. a. (10,703) (5,967) (79.4) % (13,608)
Net cash used in financing activities   (3,950) (1,940) n. a. (2,970) (1,112) n. a. (1,322)

NUMBER OF FIXED-NETWORK AND MOBILE CUSTOMERS

millions of €
  June 30, 2017 Dec. 31, 2016 Change
June 30, 2017/
Dec. 31, 2016
 %
June 30, 2016 Change
June 30, 2017/
June. 30, 2016
 %
Mobile customers 163.1 165.0 (1.2) % 160.7 1.5 %
Fixed-network lines 28.1 28.5 (1.4) % 28.6 (1.7) %
Broadband lines a 18.7 18.5 1.1 % 18.1 3.3 %
 
a Excluding wholesale.

The key parameters used by Deutsche Telekom are defined in the section “Management of the Group” of the 2016 Annual Report. The figures shown in this report were rounded in accordance with standard business rounding principles. As a result, the total indicated may not be equal to the precise sum of the individual figures.