interest payments increased in 2015 primarily due to a higher level of debt outstanding .
interest payments remained relatively flat in 2014 .
the increase in income tax payments in 2015 was primarily due to higher taxable income from operations offset by the timing of certain tax deductions .
the decrease in income tax payments in 2014 was primarily due to the settlement of tax disputes and the repatriation of foreign earnings in 2013 .
the decrease was partially offset by higher taxable income from operations and the net impact of the economic stimulus legis- lation in 2014 .
we expect income tax payments to increase in 2016 primarily due to higher taxable income from operations .
investing activities net cash used in investing activities in 2015 consisted primarily of cash paid for capital expenditures , intangible assets , acquisitions and the purchases of investments , which was partially offset by proceeds from the sales of businesses and investments .
net cash used in investing activities in 2014 consisted primarily of cash paid for capital expenditures and intangible assets .
net cash used in investing activities in 2013 con- sisted primarily of cash paid for capital expenditures , acquisitions and construction of real estate properties , purchases of investments , and cash paid for intangible assets .
capital expenditures our most significant recurring investing activity has been capital expenditures in our cable communications segment , and we expect that this will continue in the future .
the table below summarizes the capital expenditures we incurred in our cable communications segment in 2015 , 2014 and 2013. .

Year ended December 31 (in millions)
2015
2014
2013
Cable distribution system
$2,424
$2,047
$1,819
Customer premise equipment
3,698
3,397
2,990
Other equipment
756
613
527
Buildings and building improvements
156
97
67
Total
$7,034
$6,154
$5,403

cable communications capital expenditures increased in 2015 and 2014 primarily due to increased spending on customer premise equipment related to our x1 platform and wireless gateways , our continued investment in network infrastructure to increase network capacity , increased investment in support capital as we expand our cloud-based initiatives , and our continued investment to expand business services .
capital expenditures in our nbcuniversal segments increased 13.5% ( 13.5 % ) to $ 1.4 billion in 2015 and 5.3% ( 5.3 % ) to $ 1.2 billion in 2014 primarily due to continued investment in our universal theme parks , including a purchase of land in 2015 .
our capital expenditures for 2016 are focused on the continued deployment of our x1 platform and cloud dvr technology , acceleration of wireless gateways , network infrastructure to increase network capacity , and the expansion of business services .
capital expenditures for subsequent years will depend on numerous factors , including acquisitions , competition , changes in technology , regulatory changes , the timing and rate of deployment of new services , and the capacity required for existing services .
in addition , we expect to con- tinue to invest in existing and new attractions at our universal theme parks .
we are developing a universal theme park in beijing , china .
we expect the development of this park to continue in 2016 .
cash paid for intangible assets in 2015 , 2014 and 2013 , cash paid for intangible assets consisted primarily of expenditures for software .
comcast 2015 annual report on form 10-k 64 .

Question: Analyse this data from a financial earnings document. what was the percentage cable distribution systems capital expenditures of the capital expenditures incurred in cable communications segment capital expenditures in 2015?
Choices:
0.34461
0.00001
1
3.95432
36.1791
Correct choice index: 0