) increased net cash flows from receivables from improved days sales outstanding offsetting increased sales levels ; partially offset by reduced cash flows from increases in inventories to build new product lines and support increased sales levels .cash provided by operating activities in 2003 decreased $ 8.4 million from 2002 due primarily to : ) reduced cash inflows from accounts receivable securitization ; and ) reduced cash inflows from increases in inventories partially offset by : ) higher earnings in 2003 before non-cash charges and credits ; ) decreased net cash outflows from accounts and other receivables ; and ) decreased net cash outflows from accounts payable and accrued expenses .net cash used in investing activities in 2004 consisted primarily of the acquisition of pvt and the purchase of ev3 2019s technology of $ 137.7 million , and capital expenditures of $ 42.5 million .net cash used in investing activities in 2003 consisted primarily of the acquisition of jomed , whitland and embol-x , inc .of $ 33.2 million , and capital expenditures of $ 37.9 million .net cash used in financing activities in 2004 consisted primarily of purchases of treasury stock of $ 59.1 million , partially offset by proceeds from stock plans of $ 30.5 million and net proceeds from issuance of long-term debt of $ 7.1 million .cash used in financing activities in 2003 consisted primarily of purchases of treasury stock of $ 49.4 million and net payments on debt of $ 4.0 million , partially offset by proceeds from stock plans of $ 36.6 million .a summary of all of the company 2019s contractual obligations and commercial commitments as of december 31 , 2004 were as follows ( in millions ) : .
[['contractual obligations', 'payments due by period total', 'payments due by period less than 1 year', 'payments due by period 1-3 years', 'payments due by period 4-5 years', 'payments due by period after 5 years'], ['long-term debt', '$ 267.1', '$ 2014', '$ 2014', '$ 2014', '$ 267.1'], ['interest on long-term debt', '30.9', '11.2', '15.4', '4.3', '2014'], ['operating leases', '49.8', '13.1', '20.4', '15.2', '1.1'], ['unconditional purchase obligations ( a )', '15.1', '7.5', '7.6', '2014', '2014'], ['contractual development obligations ( b )', '31.9', '4.3', '3.6', '4.0', '20.0'], ['total contractual cash obligations', '$ 394.8', '$ 36.1', '$ 47.0', '$ 23.5', '$ 288.2']]
less than after contractual obligations total 1 year 1-3 years 4-5 years 5 years long-term debt *************************** $ 267.1 $ 2014 $ 2014 $ 2014 $ 267.1 interest on long-term debt ****************** 30.9 11.2 15.4 4.3 2014 operating leases*************************** 49.8 13.1 20.4 15.2 1.1 unconditional purchase obligations ( a ) ********* 15.1 7.5 7.6 2014 2014 contractual development obligations ( b ) ******** 31.9 4.3 3.6 4.0 20.0 total contractual cash obligations************* $ 394.8 $ 36.1 $ 47.0 $ 23.5 $ 288.2 ( a ) unconditional purchase obligations consist primarily of minimum purchase commitments of inventory .( b ) contractual development obligations consist primarily of cash that edwards lifesciences is obligated to pay to unconsolidated affiliates upon their achievement of product development milestones .critical accounting policies and estimates the company 2019s results of operations and financial position are determined based upon the application of the company 2019s accounting policies , as discussed in the notes to the consolidated financial statements .certain of the company 2019s accounting policies represent a selection among acceptable alternatives under generally accepted .

Question: what percent of total contractual cash obligations is due to long-term debt?
Answer: 68%