Year

Internal Cost

(Dong)

External cost

(USD)

Export Price

(FOB Price) (USD/ ton)

OER

(Dong/USD)

DRC/SER

(time)

1995

7042.965

261.87

1895

11.010

0.3264

1996

8028.980

263.16

1157

11.080

0.6757

1997

8486.631

264.25

1118

11.900

0.6965

1998

8758.204

265.12

1312

13.297

0.5242

1999

9397.552

265.31

1014

13.718

0.7629

2000

9782.852

262.79

531

14.152

2.1489

2001

9616.544

262.75

302

14.716

13.7343

2002

9578.077

264.18

363

15.274

5.2971

2003

9942.044

264.60

558

15.494

1.8200

2004

10260.190

264.14

586

15.656

1.6974

2005

11060.485

263.60

830

15.864

1.0264

2006

11978.505

263.38

1230

16.019

0.6443

2007

12864.914

263.37

1615

16.108

0.4924

2008

13932.702

258.65

2045

16.583

0.7718

2009

17151.156

266.51

1456

18.118

0.6633

2010

18351.737

264.62

1291

18.616

0.8005

2011

17349.239

1063.26

2005

19.517

0.7866

2012

17790.854

1070.11

2137

20.836

0.6669

2013

18185.826

1075.93

2115

21.034

0.6934

2014

18346.326

1079.69

2090

21.246

0.7766

2015

18739.561

734.83

1700

22.420

0.7217