| Canada, North America, Mexico, Central America | |||||
| Year | 0 - 35 km | 35 - 70 km | 70 - 100 km | 100 - 200 km | 200 - 300 km |
| 1996 | 1.5 | 0.7 | 1.3 | 0.8 | 0.5 |
| 1997 | 0.8 | 0.4 | 0.9 | 0.9 | 2.1 |
| 1998 | 1 | 1 | 1 | 1 | 0.4 |
| 1999 | 1 | 0.9 | 0.7 | 0.7 | 1.9 |
| 2000 | 1.1 | 1 | 1.1 | 1.1 | 0.5 |
| 2001 | 1.3 | 0.9 | 1.1 | 1.1 | 0.4 |
| 2002 | 1 | 0.7 | 1 | 1 | 1 |
| 2003 | 1.1 | 0.6 | 1.1 | 1.1 | 1.3 |
| 2004 | 1.1 | 0.8 | 0.8 | 0.8 | 1.3 |
| 2005 | 1 | 1 | 1.4 | 1.4 | 0.4 |
| 2006 | 1 | 1.1 | 0.9 | 0.9 | 0.7 |
| 2007 | 0.8 | 0.8 | 0.8 | 0.8 | 1.8 |
| 2008 | 1 | 1.3 | 1 | 1 | 1 |
| 2009 | 1.2 | 1 | 1.2 | 1.2 | 0.7 |
| 2010 | 0.9 | 0.5 | 1 | 1 | 1.8 |
| 2011 | 0.9 | 1 | 1.2 | 1.2 | 0.6 |
| 2012 | 1 | 1.1 | 0.7 | 0.7 | 1.5 |
| 2013 | 0.8 | 1.5 | 1 | 1 | 0.7 |
| 2014 | 0.8 | 1.5 | 1 | 1 | 0.8 |
| 2015 | 0.6 | 1.6 | 1.1 | 1.1 | 0.6 |
| 2016 | 2.7 | 0.1 | 0.8 | 0.8 | 0.7 |