business restructuring actions , including the settlement of a long-term take-or-pay silane contract .the current year payments were partially offset by a $ 69.7 net increase to accrued liabilities for the current year cost reduction and business restructuring actions .for the year ended 2012 , cash provided by operating activities was $ 1765.1 .income from continuing operations of $ 999.2 reflected the non-cash gain on the previously held equity interest in da nanomaterials of $ 85.9 , the write- down of long-lived assets associated with restructuring and a customer bankruptcy of $ 80.2 , and a non-cash tax benefit of $ 58.3 recognized as a result of the second quarter spanish tax ruling .the working capital accounts were a source of cash of $ 100.1 .the provision for the cost reduction and business restructuring plans resulted in an increase to accrued liabilities of $ 223.9 , partially offset by a use of cash of $ 32.9 for payments made in relation to these plans .for the year ended 2011 , cash provided by operating activities was $ 1710.4 .income from continuing operations of $ 1134.3 reflected the non-cash net loss of $ 48.5 related to the airgas transaction .we also made cash payments of $ 156.2 related to the airgas transaction .the working capital accounts were a use of cash of $ 114.6 , including $ 107.5 for an increase in inventory primarily to support growth in our performance materials business .investing activities for the year ended 30 september 2013 , cash used for investing activities was $ 1697.0 , primarily driven by capital expenditures for plant and equipment and acquisitions .for the year ended 30 september 2012 , cash used for investing activities was $ 2435.2 , primarily driven by capital expenditures for plant and equipment , acquisitions , and investments in unconsolidated affiliates .refer to the capital expenditures section below for additional detail .for the year ended 30 september 2011 , cash used for investing activities was $ 1169.8 , primarily driven by capital expenditures for plant and equipment .we received proceeds of $ 94.7 from the sale of approximately 1.5 million shares of airgas stock .refer to note 6 , airgas transaction , to the consolidated financial statements for additional information regarding this transaction .capital expenditures capital expenditures are detailed in the following table: .
[['', '2013', '2012', '2011'], ['additions to plant and equipment', '$ 1524.2', '$ 1521.0', '$ 1309.3'], ['acquisitions less cash acquired', '224.9', '863.4', '10.8'], ['investments in and advances to unconsolidated affiliates', '-1.3 ( 1.3 )', '175.4', '45.8'], ['capital expenditures on a gaap basis', '$ 1747.8', '$ 2559.8', '$ 1365.9'], ['capital lease expenditures ( a )', '234.9', '212.2', '173.5'], ['noncurrent liability related to purchase of shares from noncontrolling interests ( a )', '14.0', '6.3', '2014'], ['capital expenditures on a non-gaap basis', '$ 1996.7', '$ 2778.3', '$ 1539.4']]
( a ) we utilize a non-gaap measure in the computation of capital expenditures and include spending associated with facilities accounted for as capital leases and purchases of noncontrolling interests .certain contracts associated with facilities that are built to provide product to a specific customer are required to be accounted for as leases , and such spending is reflected as a use of cash within cash provided by operating activities , if the arrangement qualifies as a capital lease .additionally , the purchase of noncontrolling interests in a subsidiary is accounted for as an equity transaction and will be reflected as a financing activity in the statement of cash flows .the presentation of this non-gaap measure is intended to enhance the usefulness of information by providing a measure that our management uses internally to evaluate and manage our expenditures .capital expenditures on a gaap basis in 2013 totaled $ 1747.8 , compared to $ 2559.8 in 2012 , resulting in a decrease of $ 812.0 , primarily due to the acquisition of indura s.a .in 2012 .additions to plant and equipment are largely in support of the merchant gases and tonnage gases businesses .additions to plant and equipment also included support capital of a routine , ongoing nature , including expenditures for distribution equipment and facility improvements .spending in 2013 included plant and equipment constructed to provide oxygen for coal gasification in china , hydrogen to the global market , and renewable energy in the u.k .in 2013 , we completed three acquisitions with an aggregate cash use , net of cash acquired , of $ 224.9 .in the fourth quarter , we acquired an air separation unit and integrated gases liquefier in guiyang , china .during the third quarter , we acquired epco , the largest independent u.s .producer of liquid carbon dioxide ( co2 ) , and wcg .in 2012 , we acquired a controlling stake in indura s.a .for $ 690 and e.i .dupont de nemours and co. , inc . 2019s 50% ( 50 % ) interest in our joint venture , da nanomaterials for $ 147 .we also purchased a 25% ( 25 % ) equity interest in abdullah hashim industrial gases & equipment co .ltd .( ahg ) , an unconsolidated affiliate , for $ 155 in the third quarter. .

Question: considering the years 2011-2013 , what is the average capital expenditure on a gaap basis?
Answer: 1891.16
Explanation: it is the sum of all capital expenditures on a gaap basis divided by three .