น้ำมันพราย

7.827

/

2008

7.239

/

1995

8.423

/

2001

8.065

/

1968

8.488

/

1994

8.201

/

2010

7.653

/

2008

8.458

/

2014

7.398

/

2018

7.314

/

2016

7.905

/

1997

7.9

/

2016

8.455

/

1990

8.3

/

1989

6.905

/

2013

8.469

/

1994

7.341

/

2017

7.625

/

2015

7.603

/

2018

7.593

/

2008