Trade receivables

At 31 December 2012

At 31 December 2011

Energy receivables

852

829

Other trade receivables

75

78

Less: impairments

– 102

– 103

Total

825

804

The table below shows the aged analysis of the outstanding receivables:

At 31 December 2012

At 31 December 2011

Prior to due date

662

665

After due date

under 3 months

109

90

3 to 6 months

30

22

6 to 12 months

36

35

over 12 months

90

95

Principal amount

927

907

Less: impairments

– 102

– 103

Total

825

804

The table below shows the aged analysis of the impaired receivables:

At 31 December 2012

At 31 December 2011

Prior to due date

6

5

After due date

under 3 months

9

7

3 to 6 months

9

8

6 to 12 months

19

22

over 12 months

59

61

Totaal

102

103

Movements in the impairment losses on receivables were as follows:

2012

2011

At 1 January

103

92

Additions through income statement

32

21

Withdrawals

– 31

– 55

Reversal of earlier write-offs

– 8

Other movements

– 2

53

At 31 December

102

103

Trade receivables have a term of less than one year. In view of their short-term nature, the carrying amount of trade receivables is their fair value.