Three Months Ended September 30,

Nine Months Ended September 30,

2011

2010

2011

2010

Balance outstanding at quarter end

$

390,000

$

—

$

390,000

$

—

Maximum amount outstanding at any month end

$

390,000

$

560,000

$

495,000

$

560,000

Average amount outstanding (total of daily principal balances divided by days in period)

$

140,978

$

220,467

$

152,832

$

265,465

Weighted average interest rate (actual interest expense divided by average borrowings outstanding)

1.61

%

1.08

%

1.12

%

0.71

%