notes to consolidated financial statements 2013 ( continued ) ( amounts in millions , except per share amounts ) guarantees we have guaranteed certain obligations of our subsidiaries relating principally to operating leases and credit facilities of certain subsidiaries .
the amount of parent company guarantees on lease obligations was $ 410.3 and $ 385.1 as of december 31 , 2012 and 2011 , respectively , and the amount of parent company guarantees primarily relating to credit facilities was $ 283.4 and $ 327.5 as of december 31 , 2012 and 2011 , respectively .
in the event of non-payment by the applicable subsidiary of the obligations covered by a guarantee , we would be obligated to pay the amounts covered by that guarantee .
as of december 31 , 2012 , there were no material assets pledged as security for such parent company guarantees .
contingent acquisition obligations the following table details the estimated future contingent acquisition obligations payable in cash as of december 31 .

2013
2014
2015
2016
2017
Thereafter
Total
Deferred acquisition payments
$26.0
$12.4
$9.7
$46.4
$18.9
$2.0
$115.4
Redeemable noncontrolling interests and call options with affiliates<sup>1</sup>
20.5
43.8
32.9
5.7
2.2
10.6
115.7
Total contingent acquisition payments
46.5
56.2
42.6
52.1
21.1
12.6
231.1
Less: cash compensation expense included above
(0.7)
(0.6)
(0.8)
(0.2)
0.0
0.0
(2.3)
Total
$45.8
$55.6
$41.8
$51.9
$21.1
$12.6
$228.8

1 we have entered into certain acquisitions that contain both redeemable noncontrolling interests and call options with similar terms and conditions .
we have certain redeemable noncontrolling interests that are exercisable at the discretion of the noncontrolling equity owners as of december 31 , 2012 .
these estimated payments of $ 16.4 are included within the total payments expected to be made in 2013 , and will continue to be carried forward into 2014 or beyond until exercised or expired .
redeemable noncontrolling interests are included in the table at current exercise price payable in cash , not at applicable redemption value in accordance with the authoritative guidance for classification and measurement of redeemable securities .
the estimated amounts listed would be paid in the event of exercise at the earliest exercise date .
see note 6 for further information relating to the payment structure of our acquisitions .
all payments are contingent upon achieving projected operating performance targets and satisfying other conditions specified in the related agreements and are subject to revisions as the earn-out periods progress .
legal matters we are involved in various legal proceedings , and subject to investigations , inspections , audits , inquiries and similar actions by governmental authorities , arising in the normal course of business .
we evaluate all cases each reporting period and record liabilities for losses from legal proceedings when we determine that it is probable that the outcome in a legal proceeding will be unfavorable and the amount , or potential range , of loss can be reasonably estimated .
in certain cases , we cannot reasonably estimate the potential loss because , for example , the litigation is in its early stages .
while any outcome related to litigation or such governmental proceedings in which we are involved cannot be predicted with certainty , management believes that the outcome of these matters , individually and in the aggregate , will not have a material adverse effect on our financial condition , results of operations or cash flows .
note 15 : recent accounting standards impairment of indefinite-lived intangible assets in july 2012 , the financial accounting standards board ( 201cfasb 201d ) issued amended guidance to simplify impairment testing of indefinite-lived intangible assets other than goodwill .
the amended guidance permits an entity to first assess qualitative factors to determine whether it is 201cmore likely than not 201d that the indefinite-lived intangible asset is impaired .
if , after assessing qualitative factors , an entity concludes that it is not 201cmore likely than not 201d that the indefinite-lived intangible .

Question: Analyse this data from a financial earnings document. what percentage of total estimated future contingent acquisition obligations payable in cash occurred in 2015?
Choices:
10000
21.08269
-18.26923
4180
18.26923
Correct choice index: 4