8.5
7.8
7.3
7.8
7.8
7.8
7.1
6.8
5.3
5.0
3.9
15
14
13
12
11
10
09
08
07
06
05
$bn
8.5
7.8
7.3
7.8
7.8
7.8
7.1
6.8
5.3
5.0
3.9
15
14
13
12
11
10
09
08
07
06
05
$bn
8.5
7.8
7.3
7.8
7.8
7.8
7.1
6.8
5.3
5.0
3.9
2015
14
13
12
11
10
09
08
07
06
2005
$bn
8.5
7.8
7.3
7.8
7.8
7.8
7.1
6.8
5.3
5.0
3.9
2015
14
13
12
11
10
09
08
07
06
2005
$bn