page 74 notes to five year summary ( a ) includes the effects of items not considered in senior management 2019s assessment of the operating performance of the corporation 2019s business segments ( see the section , 201cresults of operations 201d in management 2019s discussion and analysis of financial condition and results of operations ( md&a ) ) which , on a combined basis , increased earnings from continuing operations before income taxes by $ 173 million , $ 113 million after tax ( $ 0.25 per share ) . ( b ) includes the effects of items not considered in senior management 2019s assessment of the operating performance of the corporation 2019s business segments ( see the section , 201cresults of operations 201d in md&a ) which , on a combined basis , decreased earnings from continuing operations before income taxes by $ 215 million , $ 154 million after tax ( $ 0.34 per share ) . also includes a reduction in income tax expense resulting from the closure of an internal revenue service examination of $ 144 million ( $ 0.32 per share ) . these items reduced earnings by $ 10 million after tax ( $ 0.02 per share ) . ( c ) includes the effects of items not considered in senior management 2019s assessment of the operating performance of the corporation 2019s business segments ( see the section , 201cresults of operations 201d in md&a ) which , on a combined basis , decreased earnings from continuing operations before income taxes by $ 153 million , $ 102 million after tax ( $ 0.22 per share ) . ( d ) includes the effects of items not considered in senior management 2019s assessment of the operating performance of the corporation 2019s business segments which , on a combined basis , decreased earnings from continuing operations before income taxes by $ 1112 million , $ 632 million after tax ( $ 1.40 per share ) . in 2002 , the corporation adopted fas 142 which prohibits the amortization of goodwill . ( e ) includes the effects of items not considered in senior management 2019s assessment of the operating performance of the corporation 2019s business segments which , on a combined basis , decreased earnings from continuing operations before income taxes by $ 973 million , $ 651 million after tax ( $ 1.50 per share ) . also includes a gain from the disposal of a business and charges for the corporation 2019s exit from its global telecommunications services business which is included in discontinued operations and which , on a combined basis , increased the net loss by $ 1 billion ( $ 2.38 per share ) . ( f ) the corporation defines return on invested capital ( roic ) as net income plus after-tax interest expense divided by average invested capital ( stockholders 2019 equity plus debt ) , after adjusting stockholders 2019 equity by adding back the minimum pension liability . the adjustment to add back the minimum pension liability is a revision to our calculation in 2005 , which the corporation believes more closely links roic to management performance . further , the corporation believes that reporting roic provides investors with greater visibility into how effectively lockheed martin uses the capital invested in its operations . the corporation uses roic to evaluate multi-year investment decisions and as a long-term performance measure , and also uses roic as a factor in evaluating management performance under certain incentive compensation plans . roic is not a measure of financial performance under gaap , and may not be defined and calculated by other companies in the same manner . roic should not be considered in isola- tion or as an alternative to net earnings as an indicator of performance . the following calculations of roic reflect the revision to the calculation discussed above for all periods presented . ( in millions ) 2005 2004 2003 2002 2001 .
what was the average net earnings in millions from 2001 to 2005?
1 represents after-tax interest expense utilizing the federal statutory rate of 35% ( 35 % ) . 2 debt consists of long-term debt , including current maturities , and short-term borrowings ( if any ) . 3 equity includes non-cash adjustments for other comprehensive losses , primarily for the additional minimum pension liability . 4 minimum pension liability values reflect the cumulative value of entries identified in our statement of stockholders equity under the caption 201cminimum pension liability . 201d the annual minimum pension liability adjustments to equity were : 2001 = ( $ 33 million ) ; 2002 = ( $ 1537 million ) ; 2003 = $ 331 million ; 2004 = ( $ 285 million ) ; 2005 = ( $ 105 million ) . as these entries are recorded in the fourth quarter , the value added back to our average equity in a given year is the cumulative impact of all prior year entries plus 20% ( 20 % ) of the cur- rent year entry value . 5 yearly averages are calculated using balances at the start of the year and at the end of each quarter . lockheed martin corporation .