COMPARATIVE U. S. CIVIL HELICOPTER SAFETY TRENDS |
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| 2013 | 1st Quarter ( January - March) |
| 2012 | 1st Quarter ( January - March)
2nd Quarter ( January - June)
3rd Quarter (January - September)
4th Quarter (January - December) |
| 2011 | 1st Quarter ( January - March)
2nd Quarter (January - June)
3rd Quarter (January - September)
4th Quarter (January - December) |
| 2010 | 1st Quarter ( January - March)
2nd Quarter (January - June)
3rd Quarter (January - September)
4th Quarter (January - December) |
2009 | 1st Quarter (January - March)
2nd Quarter (January - June)
3rd Quarter (January - September)
4th Quarter (January - December) |
2008 | 1st Quarter (January - March)
2nd Quarter (January - June)
3rd Quarter (January - September)
4th Quarter (January - December) |
2007 | 1st Quarter (January - March)
2nd Quarter (January - June)
3rd Quarter (January - September)
4th Quarter (January - December) |
2006 | 1st Quarter (January - March)
2nd Quarter (January - June)
3rd Quarter (January - September)
4th Quarter (January - December) |
2005 | 3rd Quarter (January - September)
4th Quarter (January - December) |