Productivity

2005

2006

2007

2008

2009

2010

2011

Average

Airline transportation

1.389

0.862

0.783

0.836

1.327

0.840

1.132

0.998

Truck transportation

0.642

1.322

1.039

0.872

1.208

1.105

0.836

0.978

Rail transportation

0.476

1.502

1.216

0.660

1.815

0.464

1.916

0.989

Pipeline transportation

0.494

1.035

1.087

1.921

0.752

0.829

0.707

0.898

Water transportation

1.176

1.121

0.870

0.917

0.990

0.708

1.370

1.001

Pooled transportation

0.662

1.485

0.831

0.951

1.291

0.848

1.217

1.005