Government Scientific Source

$0~$10(2)
$10~$25(30)
$25~$50(29)
$50~$75(21)
$75~$100(32)
$100~$200(131)
$200~$300(59)
$300~$400(54)
$400~$500(46)
$500~$750(45)
$750~$1000(22)
$1000~$5000(19)
$5000~$10000(0)
$10000~$50000(0)
$50000~$100000(0)
$100000~$3000000(0)

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