ROIC Calculation

Exhibit 99.1

Company's Return on Invested Capital Calculation

(For the Three Months ending September 30, 2006)

Adjustments

($ 000)

As Reported

Depreciation/

Company's

Amortization

ROIC

Operating Income from

Adjusted Net

Continued Operations

9,920

$         

2,078

$                      

11,998

$     

Operating Income

47,992

$     

Annualized

Company

Assets/Liabilities

Cash Limit (1)

Held for Sale

Cash & Cash

Equivalents

157,283

$     

(82,283)

$          

75,000

$     

Non-Cash Assets

248,218

(3,832)

244,386

Total Assets

405,501

319,386

Total Current Liabilities

98,771

98,771

Net Invested Capital

306,730

$     

220,615

$   

Adjusted Net

Invested Capital

21.8%

ROIC

(1) Only the first $75 million of cash is used for the ROIC calculation

We define Return On Invested Capital (ROIC) as Operating Income divided by adjusted net Invested Capital. Total Assets are adjusted for

discontinued operations' assets held for sale. Net Invested Capital is defined as Total Assets less Current Liabilities. We believe ROIC is a useful

measure in providing investors with information regarding our performance. ROIC is a widely accepted measure of earnings efficiency in relation to

capital employed. We believe that increasing the return on capital employed, as measured by ROIC, is an effective method to sustain and increase

shareholder value.