Month

Amount of trade (ton)

Value of trade (Yuan)

Aver. price (Y/ton)

1

2

3

4

5

6

7

8

9

10

11

12

3170

9800

21,700

22,600

80,973

441,823

357,606

17,003

27,600

15,450

26,000

43,550

158,995

508,455

1,248,340

1,223,070

4,298,270.9

24,113,098.3

25,487,543.8

876,525

1,416,025

785,285

1,335,700

2,246,280

50.16

51.88

57.53

54.12

53.08

54.58

71.27

51.55

51.31

50.83

51.37

51.58