[SCH-EUSR-35] The number of each Subset/SendingOrReceivingEndUsers MUST be greater or equal to the number of Subset/ReceivingEndUsers
SCH-EUSR-35/eusr:EndUserStatisticsReportevery $st in (eusr:Subset) satisfies xs:integer($st/eusr:SendingOrReceivingEndUsers) >= xs:integer($st/eusr:ReceivingEndUsers)