Please answer the given financial question based on the context.
Context: be resolved , we cannot reasonably determine the probability of an adverse claim or reasonably estimate any adverse liability or the total maximum exposure under these indemnification arrangements . we do not have any reason to believe that we will be required to make any material payments under these indemnity provisions . income taxes 2013 as discussed in note 4 , the irs has completed its examinations and issued notices of deficiency for tax years 1995 through 2004 , and we are in different stages of the irs appeals process for these years . the irs is examining our tax returns for tax years 2005 and 2006 . in the third quarter of 2007 , we believe that we reached an agreement in principle with the irs to resolve all of the issues , except interest , related to tax years 1995 through 1998 , including the previously reported dispute over certain donations of property . we anticipate signing a closing agreement in 2008 . at december 31 , 2007 , we have recorded a current liability of $ 140 million for tax payments in 2008 related to federal and state income tax examinations . we do not expect that the ultimate resolution of these examinations will have a material adverse effect on our consolidated financial statements . 11 . other income other income included the following for the years ended december 31 : millions of dollars 2007 2006 2005 .
|millions of dollars|2007|2006|2005|
|rental income|$ 68|$ 83|$ 59|
|net gain on non-operating asset dispositions|52|72|135|
|interest income|50|29|17|
|sale of receivables fees|-35 ( 35 )|-33 ( 33 )|-23 ( 23 )|
|non-operating environmental costs and other|-19 ( 19 )|-33 ( 33 )|-43 ( 43 )|
|total|$ 116|$ 118|$ 145|
12 . share repurchase program on january 30 , 2007 , our board of directors authorized the repurchase of up to 20 million shares of union pacific corporation common stock through the end of 2009 . management 2019s assessments of market conditions and other pertinent facts guide the timing and volume of all repurchases . we expect to fund our common stock repurchases through cash generated from operations , the sale or lease of various operating and non- operating properties , debt issuances , and cash on hand at december 31 , 2007 . during 2007 , we repurchased approximately 13 million shares under this program at an aggregate purchase price of approximately $ 1.5 billion . these shares were recorded in treasury stock at cost , which includes any applicable commissions and fees. .
Question: what percent of total other income was rental income in 2007?
Answer:
0.58621