Size/year

Item

SMEs

Large enterprises

2009

2010

2011

2009

2010

2011

Net operating income

100.00

100.00

100.00

100.00

100.00

100.00

Less: operating costs

80.98

80.88

78.41

91.79

89.71

87.48

Gross operating profit

19.02

19.12

21.59

8.21

10.29

12.52

Less: operating expenses

18.43

16.97

16.80

6.39

6.40

7.34

Net operating profit

0.59

2.14

4.79

1.82

3.89

5.19