17:
16:
21:
15:
8:
7:
14:
24:, (not adjusted for inflation)
1:
39:
25:
19:
26:
30:
22:crude oil prices
38:
37:
33:
32:
31:
29:
28:
27:
12:
11:
5:
36:
34:
13:
10:
9:
6:
4:
3:
2:
35:
23:
18:
20:Medium term
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