Government Scientific Source

$0~$10(2)
$10~$25(28)
$25~$50(40)
$50~$75(27)
$75~$100(14)
$100~$200(30)
$200~$300(7)
$300~$400(7)
$400~$500(4)
$500~$750(7)
$750~$1000(1)
$1000~$5000(0)
$5000~$10000(0)
$10000~$50000(0)
$50000~$100000(0)
$100000~$3000000(0)

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