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Administration dates of the ITC Survey, Waves 1-9
| Wave | Survey Dates |
|---|---|
| 1 | October – December 2002 |
| 2 | May – September 2003 |
| 3 | June – December 2004 |
| 4 | October 2005 – January 2006 |
| 5 | October 2006 – February 2007 |
| 6 | September 2007 – February 2008 |
| 7 | October 2008 – February 2009 |
| 8 | July 2010 – June 2011 |
| Revision of Warning Labels – May 2012 | |
| 9 | August 2013 – May 2014 |
