Government Scientific Source

$0~$10(24)
$10~$25(146)
$25~$50(205)
$50~$75(150)
$75~$100(168)
$100~$200(1047)
$200~$300(869)
$300~$400(1929)
$400~$500(8589)
$500~$750(7610)
$750~$1000(1403)
$1000~$5000(5910)
$5000~$10000(572)
$10000~$50000(416)
$50000~$100000(85)
$100000~$3000000(73)

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