Government Scientific Source

$0~$10(14)
$10~$25(35)
$25~$50(100)
$50~$75(116)
$75~$100(97)
$100~$200(448)
$200~$300(213)
$300~$400(191)
$400~$500(149)
$500~$750(251)
$750~$1000(169)
$1000~$5000(620)
$5000~$10000(164)
$10000~$50000(195)
$50000~$100000(6)
$100000~$3000000(1)

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