➜  ~  mongoexport --collection testdata
2015-05-14T14:45:01.518-0700	connected to: localhost
{"_id":{"$oid":"555516d360f0cc0553277ba1"},"x":NumberInt(10)}
{"_id":{"$oid":"555516d360f0cc0553277ba2"},"x":NumberInt(1)}
{"_id":{"$oid":"555516d360f0cc0553277ba3"},"x":0.1}
{"_id":{"$oid":"555516d360f0cc0553277ba4"},"x":0.01}
{"_id":{"$oid":"555516d360f0cc0553277ba5"},"x":0.001}
{"_id":{"$oid":"555516d360f0cc0553277ba6"},"x":0.0001}
{"_id":{"$oid":"555516d360f0cc0553277ba7"},"x":1e-05}
{"_id":{"$oid":"555516d360f0cc0553277ba8"},"x":1e-06}
{"_id":{"$oid":"555516d360f0cc0553277ba9"},"x":1e-07}
{"_id":{"$oid":"555516d360f0cc0553277baa"},"x":1e-08}
{"_id":{"$oid":"555516d360f0cc0553277bab"},"x":1e-09}
{"_id":{"$oid":"555516d360f0cc0553277bac"},"x":1e-10}
{"_id":{"$oid":"5555175760f0cc0553277bad"},"x":NumberInt(3)}
{"_id":{"$oid":"5555175760f0cc0553277bae"},"x":NumberInt(7)}
{"_id":{"$oid":"5555175760f0cc0553277baf"},"x":NumberInt(100)}
{"_id":{"$oid":"5555175760f0cc0553277bb0"},"x":NumberInt(101)}