Government Scientific Source

$0~$10(23)
$10~$25(34)
$25~$50(47)
$50~$75(59)
$75~$100(54)
$100~$200(113)
$200~$300(90)
$300~$400(81)
$400~$500(166)
$500~$750(149)
$750~$1000(120)
$1000~$5000(808)
$5000~$10000(340)
$10000~$50000(652)
$50000~$100000(151)
$100000~$3000000(33)

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