Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.


packaging corporation of america notes to consolidated financial statements ( continued ) december 31 , 2005 9 . shareholders 2019 equity ( continued ) stockholder received proceeds , net of the underwriting discount , of $ 20.69 per share . the company did not sell any shares in , or receive any proceeds from , the secondary offering . concurrent with the closing of the secondary offering on december 21 , 2005 , the company entered into a common stock repurchase agreement with pca holdings llc . pursuant to the repurchase agreement , the company purchased 4500000 shares of common stock directly from pca holdings llc at the initial price to the public net of the underwriting discount or $ 20.69 per share , the same net price per share received by pca holdings llc in the secondary offering . these shares were retired on december 21 , 2005 . 10 . commitments and contingencies capital commitments the company had authorized capital expenditures of approximately $ 33.1 million and $ 55.2 million as of december 31 , 2005 and 2004 , respectively , in connection with the expansion and replacement of existing facilities and equipment . operating leases pca leases space for certain of its facilities and cutting rights to approximately 108000 acres of timberland under long-term leases . the company also leases equipment , primarily vehicles and rolling stock , and other assets under long-term leases of a duration generally of three years . the minimum lease payments under non-cancelable operating leases with lease terms in excess of one year are as follows : ( in thousands ) . <table class='wikitable'><tr><td>1</td><td>2006</td><td>$ 24569</td></tr><tr><td>2</td><td>2007</td><td>21086</td></tr><tr><td>3</td><td>2008</td><td>14716</td></tr><tr><td>4</td><td>2009</td><td>9801</td></tr><tr><td>5</td><td>2010</td><td>6670</td></tr><tr><td>6</td><td>thereafter</td><td>37130</td></tr><tr><td>7</td><td>total</td><td>$ 113972</td></tr></table> capital lease obligations were not significant to the accompanying financial statements . total lease expense , including base rent on all leases and executory costs , such as insurance , taxes , and maintenance , for the years ended december 31 , 2005 , 2004 and 2003 was $ 35.8 million , $ 33.0 million and $ 31.6 million , respectively . these costs are included in cost of goods sold and selling and administrative expenses. .
Question: what was total lease expense in 2005?
Answer: 35.8
Question: what was it in 2004?

33.0