Chart 2
The 12-month change in the transportation index

Chart description
The title of the graph is "The 12-month change in the transportation index."
This is a line chart.
There are in total 61 categories in the horizontal axis. The vertical axis starts at -15 and ends at 15 with ticks every 5 points.
There are 1 series in this graph.
The vertical axis is "12-month % change."
The units of the horizontal axis are months by year from February 2008 to February 2013.
The title of series 1 is "12-month change in the transportation index."
The minimum value is -9.1 occurring in July 2009.
The maximum value is 9.1 occurring in May 2011.
| 12-month % change | |
|---|---|
| February 2008 | 2.5 |
| March 2008 | 0.1 |
| April 2008 | 1.3 |
| May 2008 | 2.4 |
| June 2008 | 5.5 |
| July 2008 | 6.1 |
| August 2008 | 5.8 |
| September 2008 | 4.7 |
| October 2008 | 1.6 |
| November 2008 | -3 |
| December 2008 | -6.1 |
| January 2009 | -7.5 |
| February 2009 | -5.8 |
| March 2009 | -6.2 |
| April 2009 | -8 |
| May 2009 | -8.2 |
| June 2009 | -7.7 |
| July 2009 | -9.1 |
| August 2009 | -6.7 |
| September 2009 | -7.2 |
| October 2009 | -3.1 |
| November 2009 | 1.9 |
| December 2009 | 4.7 |
| January 2010 | 7.7 |
| February 2010 | 5.9 |
| March 2010 | 6 |
| April 2010 | 6.2 |
| May 2010 | 4.1 |
| June 2010 | 1 |
| July 2010 | 2.7 |
| August 2010 | 2 |
| September 2010 | 3.1 |
| October 2010 | 4.6 |
| November 2010 | 4.6 |
| December 2010 | 4.9 |
| January 2011 | 4.8 |
| February 2011 | 5.1 |
| March 2011 | 6.6 |
| April 2011 | 8.3 |
| May 2011 | 9.1 |
| June 2011 | 7 |
| July 2011 | 6.5 |
| August 2011 | 7 |
| September 2011 | 7.9 |
| October 2011 | 6.7 |
| November 2011 | 5.7 |
| December 2011 | 3.3 |
| January 2012 | 3.7 |
| February 2012 | 4.2 |
| March 2012 | 3.8 |
| April 2012 | 3.2 |
| May 2012 | 0.8 |
| June 2012 | 1.7 |
| July 2012 | 1.1 |
| August 2012 | 1.8 |
| September 2012 | 1.6 |
| October 2012 | 1.7 |
| November 2012 | -0.2 |
| December 2012 | 0.5 |
| January 2013 | -0.5 |
| February 2013 | 2.0 |
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