Nine Months Ended September 30, 2011

Year Ended December 31,

2010

2009

Historical accounting:

(Unaudited)

Interest cost

$

1,990

$

3,009

$

3,413

Expected return on plan assets

(2,073

)

(4,946

)

(5,129

)

Service cost

1

2

7

Recognized actuarial loss

1,682

1,909

1,515

Settlement expense

1,030

2,076

3,010

Amortization of transition obligation

3

4

4

Net periodic benefit cost (income)

$

2,633

$

2,054

$

2,820

Income before income tax expense

$

151,214

$

237,626

$

132,541

Income tax expense

56,056

87,765

45,854

Income after income tax expense

95,158

149,861

86,687

Income (loss) attributable to non-controlling interest

3,918

3,297

(410

)

Net income

91,240

146,564

87,097

Preferred stock dividends

—

—

6,378

Non-cash deemed preferred stock distribution

—

—

12,025

Net income available to common stockholders

$

91,240

$

146,564

$

68,694

Diluted earnings per share

$

.59

$

1.05

$

.54

Nine Months Ended

Year Ended December 31,

September 30, 2011

2010

2009

Accounting under revised method:

(Unaudited)

(Unaudited)

(Unaudited)

Interest cost

$

1,990

$

3,009

$

3,413

Return on plan assets

(2,033

)

(9,938

)

(13,560

)

Service cost

1

2

7

Recognized actuarial loss

—

2,188

1,827

Amortization of transition obligation

3

4

4

Net periodic benefit cost (income)

$

(39

)

$

(4,735

)

$

(8,309

)

Income before income tax expense

$

153,886

$

244,415

$

143,670

Income tax expense

57,017

90,171

49,811

Income after income tax expense

96,869

154,244

93,859

Income (loss) attributable to non-controlling interest

3,918

3,297

(410

)

Net income

92,951

150,947

94,269

Preferred stock dividends

—

—

6,378

Non-cash deemed preferred stock distribution

—

—

12,025

Net income available to common stockholders

$

92,951

$

150,947

$

75,866

Diluted earnings per share

$

.60

$

1.08

$

.60

At or For the Three Months Ended

Sept. 30,

Jun. 30,

Mar. 31,

Dec. 31,

Sept. 30,

Jun. 30,

Mar. 31,

2011

2011

2011

2010

2010

2010

2010

Historical accounting:

Interest cost

$

664

$

662

$

664

$

752

$

752

$

753

$

752

Expected return on plan assets

(691

)

(691

)

(691

)

(1,238

)

(1,236

)

(1,236

)

(1,236

)

Service cost

—

1

—

1

—

—

1

Recognized actuarial loss

561

561

560

477

478

478

476

Settlement expense

293

368

369

610

580

442

444

Amortization of transition obligation

1

1

1

1

1

1

1

Net periodic benefit cost (income)

$

828

$

902

$

903

$

603

$

575

$

438

$

438

Income before income tax expense

$

51,816

$

50,281

$

49,117

$

47,634

$

60,657

$

74,323

$

55,012

Income tax expense

18,856

18,758

18,442

16,011

22,852

28,112

20,790

Income after income tax expense

32,960

31,523

30,675

31,623

37,805

46,211

34,222

Income (loss) attributable to non-controlling interest

1,243

1,686

989

898

912

1,186

301

Net income

31,717

29,837

29,686

30,725

36,893

45,025

33,921

Diluted earnings per share

$

.20

$

.19

$

.20

$

.22

$

.26

$

.32

$

.26

Accounting under revised method:

Interest cost

$

664

$

662

$

664

$

752

$

752

$

753

$

752

Return on plan assets

(678

)

(677

)

(678

)

(6,867

)

(1,023

)

(1,024

)

(1,024

)

Service cost

—

1

—

1

—

—

1

Recognized actuarial loss

—

—

—

2,188

—

—

—

Amortization of transition obligation

1

1

1

1

1

1

1

Net periodic benefit cost (income)

$

(13

)

$

(13

)

$

(13

)

$

(3,925

)

$

(270

)

$

(270

)

$

(270

)

Income before income tax expense

$

52,657

$

51,196

$

50,033

$

52,162

$

61,502

$

75,031

$

55,720

Income tax expense

19,159

19,086

18,772

17,391

23,226

28,438

21,116

Income after income tax expense

33,498

32,110

31,261

34,771

38,276

46,593

34,604

Income (loss) attributable to non-controlling interest

1,243

1,686

989

898

912

1,186

301

Net income

32,255

30,424

30,272

33,873

37,364

45,407

34,303

Diluted earnings per share

$

.20

$

.19

$

.21

$

.24

$

.26

$

.32

$

.26