as the payments landscape evolves , we may increasingly face competition from emerging players in the payment space , many of which are non-financial institution networks that have departed from the more traditional 201cbank-centric 201d business model .
the emergence of these potentially competitive networks has primarily been via the online channel with a focus on ecommerce and/or mobile technologies .
paypal , google and isis are examples .
these providers compete with visa directly in some cases , yet may also be significant partners and customers of visa .
based on payments volume , total volume and number of transactions , visa is the largest retail electronic payments network in the world .
the following chart compares our network with those of our major general purpose payment network competitors for calendar year 2011 : company payments volume volume transactions cards ( billions ) ( billions ) ( billions ) ( millions ) visa inc. ( 1 ) .
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$ 3768 $ 6029 77.6 2011 .

Company
PaymentsVolume (billions)
TotalVolume (billions)
TotalTransactions (billions)
Cards (millions)
Visa Inc.<sup>(1)</sup>
$3,768
$6,029
77.6
2,011
MasterCard
2,430
3,249
39.8
1,059
American Express
808
822
5.3
97
Discover
114
122
1.9
59
JCB
160
166
1.4
77
Diners Club
28
29
0.2
6

( 1 ) visa inc .
figures as reported on form 8-k filed with the sec on february 8 and may 2 , 2012 , respectively .
visa figures represent total volume , payments volume and cash volume , and the number of payments transactions , cash transactions , accounts and cards for products carrying the visa , visa electron and interlink brands .
card counts include plus proprietary cards .
payments volume represents the aggregate dollar amount of purchases made with cards carrying the visa , visa electron and interlink brands for the relevant period .
total volume represents payments volume plus cash volume .
the data presented is reported quarterly by visa 2019s clients on their operating certificates and is subject to verification by visa .
on occasion , clients may update previously submitted information .
sources : mastercard , american express , jcb and diners club data sourced from the nilson report issue 992 ( april 2012 ) .
includes all consumer and commercial credit , debit and prepaid cards .
some prior year figures have been restated .
currency figures are in u.s .
dollars .
mastercard excludes maestro and cirrus figures .
american express includes figures for third-party issuers .
jcb figures include third-party issuers and other payment-related products .
some figures are estimates .
diners club figures are for the 12 months ended november 30 , 2011 .
discover data sourced from the nilson report issue 986 ( january 2012 ) 2014u.s .
data only and includes business from third-party issuers .
for more information on the concentration of our operating revenues and other financial information , see item 8 2014financial statements and supplementary data 2014note 14 2014enterprise-wide disclosures and concentration of business included elsewhere in this report .
working capital requirements payments settlement due from and due to issuing and acquiring clients represents a substantial daily working capital requirement .
u.s .
dollar settlements are typically settled within the same day and do not result in a receivable or payable balance , while settlement currencies other than the u.s .
dollar generally remain outstanding for one to two business days , consistent with industry practice for such transactions. .

Question: Analyse this data from a financial earnings document. what is the average payment per transaction of discover holders?
Choices:
15.8
60.0
57
1.5
1.9
Correct choice index: 1