(In thousands)		2012		2012		2011		2011
	Carrying Value		Estimated Fair Value		Carrying Value		Estimated Fair Value
Industrial revenue bond, due 2023	$	8,400	$	8,400	$	9,004	$	9,004
Revolving credit agreement, due 2017		286,800		286,800		-		-
5.74% Senior notes due 2013		125,011		128,198		125,024		134,982
5.51% Senior notes due 2017		150,000		168,491		150,000		172,871
3.84% Senior notes due 2021		100,677		100,677		100,000		101,886
4.24% Senior notes due 2026		198,581		198,581		200,000		204,965
Other debt		10,746		10,746		2,402		2,402
Total debt		880,215		901,893		586,430		626,110
Less: current portion of long-term debt and short-term debt		128,225		128,225		2,502		2,502
Total long-term debt	$	751,990	$	773,668	$	583,928	$	623,608

The weighted-average interest rate of the Corporation's Revolving Credit Agreement was 2.00% and 0.80% in 2012 and 2011, respectively.

The fair value of the Corporation's debt is prepared in accordance with the requirements of U.S. GAAP, as noted in Note 10 of the Consolidated Financial Statements. The estimated fair value amounts were determined by the Corporation using available market information which is primarily based on quoted market prices for the same or similar issues. The carrying amount of the Revolving Credit Agreement and Industrial Revenue Bonds approximates fair value as the interest rates on this variable debt are reset periodically to reflect market conditions and rates. Fair values for the Corporation's fixed rate debt totaled $596 million and $615 million at December 31, 2012 and 2011, respectively. These fair values were estimated by management. The fair values described above may not be indicative of net realizable value or reflective of future fair values. Furthermore, the use of different methodologies to determine the fair value of certain financial instruments could result in a different estimate of fair value at the reporting date.

Interest payments of $24 million, $17 million, and $21 million were made in 2012, 2011, and 2010, respectively.

In August 2012, we amended and refinanced our existing credit facility by entering into a Third Amended and Restated Credit Agreement (Credit Agreement) with a syndicate of financial institutions, led by Bank of America N.A., Wells Fargo, N.A, and JP Morgan Chase Bank, N.A.. The proceeds available under the Credit Agreement are to be used for working capital, internal growth initiatives, funding of future acquisitions, and general corporate purposes. Under the terms of the revolving credit agreement, we have a borrowing capacity of $500 million. In addition, the credit agreement provides an accordion feature which allows us to borrow an additional $100 million. As of December 31, 2012, we had $47 million in letters of credit supported by the credit facility and $287 million of borrowings under the credit facility.

The revolving credit agreement contains covenants that we consider usual and customary for an agreement of this type for comparable commercial borrowers, including a maximum consolidated net debt-to-capitalization ratio of 60 percent. The agreement has customary events of default, such as non-payment of principal when due; nonpayment of interest, fees, or other amounts; cross-payment default and cross-acceleration.

Borrowings under the credit agreement will accrue interest based on (i) Libor or (ii) a base rate of the highest of (a) the federal funds rate plus 0.5%, (b) BofA's announced prime rate, or (c) the Eurocurrency rate plus 1%, plus a margin. The interest rate and level of facility fees are dependent on certain financial ratios, as defined in the Credit Agreement. The Credit Agreement also provides customary fees, including administrative agent and commitment fees. In connection with the Credit Agreement, we paid customary transaction fees that have been deferred and are being amortized over the term of the Credit Agreement.

On December 8, 2011 the Corporation issued $300 million of Senior Notes (the 2011 Notes). The 2011 Notes consist of $100 million of 3.84% Senior Notes that mature on December 1, 2021 and $200 million of 4.24% Senior Series Notes that mature on December 1, 2026. The 2011 Notes are senior unsecured obligations, equal in right of payment to our existing senior indebtedness. The Corporation, at its option, can prepay at any time all or any part of our 2011 Notes, subject to a make-whole payment in accordance with the terms of the Note Purchase Agreement. In connection with our 2011 Notes, the Corporation paid customary fees that have been deferred and are being amortized over the term of our 2011 Notes. Under the Note Purchase Agreement, the Corporation is required to maintain certain financial ratios and funding obligations under the defined pension plan, the most restrictive of which is a debt to capitalization limit of 60%. The 2011 Notes also contain a cross default provision with our other senior indebtedness.

The debt outstanding had fixed and variable interest rates averaging 4% during the twelve months ended December 31, 2012.

On December 1, 2005, the Corporation issued $150 million of 5.51% Senior Notes (the 2005 Notes). The 2005 Notes mature on December 1, 2017. The Notes are senior unsecured obligations and are equal in right of payment to the Corporation's existing senior indebtedness. The Corporation, at its option, can prepay at any time all or any part of the 2005 Notes, subject to a make-whole amount in accordance with the terms of the Note Purchase Agreement. In connection with the Notes, the Corporation paid customary fees that have been deferred and are being amortized over the terms of the Notes. The Corporation is required under the Note Purchase Agreement to maintain certain financial ratios, the most restrictive of which is a debt to capitalization limit of 60%. The 2005 Notes also contain a cross default provision with the Corporation's other senior indebtedness.

On September 25, 2003, the Corporation issued $200 million of Senior Notes (the 2003 Notes). The 2003 Notes consist of $75 million of 5.13% Senior Notes that matured on September 25, 2010 and $125 million of 5.74% Senior Notes that mature on September 25, 2013. The $75 million 5.13% Senior Notes were repaid during the third quarter of 2010 by drawing down on our revolver. The 2003 Notes are senior unsecured obligations and are equal in right of payment to the Corporation's existing senior indebtedness. The Corporation, at its option, can prepay at any time all or any part of the 2003 Notes, subject to a make-whole amount in accordance with the Note Purchase Agreement. The Corporation paid customary fees that have been deferred and are being amortized over the terms of the 2003 Notes. The Corporation is required under the Note Purchase Agreement to maintain certain financial ratios, the most restrictive of which is a debt to capitalization limit of 60%. The 2003 Notes also contain a cross default provision with the Corporation's other senior indebtedness.