High Number of Tasks Aborted/Sec?

Hello,

I recently setup Service Broker - Internal Activation. I ran built-in SSMS "Service Broker Statistics" reports and saw this;

Store Procedures Invoked/sec : 184

Tasks Aborted/sec :184

Tasks Running: 0

Tasks Started/sec: 184

I used "SET XACT_ABORT ON" at the top of the activation sproc. Do you think all transactions through  the activation sproc are rolling back?

Thanks,

Kuzey