For the three months
ended March 31,

For the years ended December 31,

(Dollars in thousands, except ratios)

2017

2016

2016

2015

2014

2013

2012

Income (Loss) before income tax expense

$

69,446

$

68,838

$

242,200

$

221,096

$

219,795

$

194,170

$

184,171

Plus fixed charges

19,625

20,866

84,808

77,297

78,864

85,093

111,155

Earnings

89,071

89,704

327,008

298,393

298,659

279,263

295,326

Fixed charges

19,625

20,866

84,808

77,297

78,864

85,093

111,155

Preferred stock dividends

—

—

—

—

—

10,277

17,093

Fixed charges and preferred stock dividends

$

19,625

$

20,866

$

84,808

$

77,297

$

78,864

$

95,370

$

128,248

Ratio of earnings to fixed charges and preferred dividends

4.54

4.30

3.86

3.86

3.79

2.93

2.30