Customer Service
800-331-3332 or 312-930-2316

|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Yearly |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2003 | 20.7 | 17.5 | 25.1 | 18.0 | 14.7 | 16.6 | 15.5 | 11.8 | 14.3 | 11.2 | 10.2 | 9.0 | 15.4 |
| 2004 | 10.3 | 8.0 | 15.8 | 12.5 | 11.5 | 9.8 | 10.9 | 12.3 | 8.7 | 12.6 | 9.4 | 8.8 | 10.9 |
| 2005 | 9.4 | 10.7 | 10.1 | 15.1 | 9.3 | 8.7 | 8.3 | 9.3 | 7.6 | 15.7 | 7.2 | 7.4 | 9.9 |
| 2006 | 10.5 | 9.2 | 7.7 | 8.7 | 14.2 | 14.7 | 13.1 | 6.6 | 8.0 | 5.9 | 8.8 | 6.6 | 9.5 |
| 2007 | 7.7 | 16.4 | 13.9 | 7.4 | 7.9 | 15.1 | 17.5 | 22.6 | 14.6 | 14.3 | 26.5 | 18.7 | 15.2 |
| 2008 | 23.9 | 18.2 | 29.3 | 13.5 | 13.8 | 19.7 | |||||||
| Mean | 13.7 | 13.3 | 17.0 | 12.5 | 11.9 | 13.0 | 13.1 | 12.5 | 10.6 | 11.9 | 12.4 | 10.1 | |
| High | 23.9 | 18.2 | 29.3 | 18.0 | 14.7 | 16.6 | 17.5 | 22.6 | 14.6 | 15.7 | 26.5 | 18.7 | |
| Low | 7.7 | 8.0 | 7.7 | 7.4 | 7.9 | 8.7 | 8.3 | 6.6 | 7.6 | 5.9 | 7.2 | 6.6 |