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7. Year over year comparisons

It can be interesting to compare the current year to previous years, both to spot longer term trends as well as pick up causes of variations which may be used for improvements and remediation.

7.1. ARES

ARES hours across the emergency and public service categories are relatively flat. As might be expected, emergency hours tend to be higher in bad weather years. It is interesting that public service hours tend to track emergency hours; perhaps indicating that active years also lead to more reporting.
Active years also tend to show an increase in drills. Not only do active years encourage interest, but bad weather damages amateur radio infrastructure as well, and programs tend to hold drills to test newly repaired or installed equipment.
The spike in Drills for 2011 should not be a surprise. Both the New Madrid Aftermath exercise and the SET involved more effort and more amateurs than most previous drills.
ARES hours by category
FSD-212 Results
Figure 9. ARES hours by category