In three and a half years of high oil prices none has been extracted.
Mr Liverpool has chosen not to give evidence and none has been called on his behalf.
None has been bold enough to push through liberalising structural reforms to raise growth and productivity.
So far, few astronomers have conducted searches for Dyson spheres and none has been successful.
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Several hundred big tax evaders have been identified, yet so far none has been convicted or imprisoned.
Several officials have lost their jobs in connection with the scandal but none has been taken to court.
He added that, during the Arab uprisings, several witness reports have cited chemical attacks, but none has been confirmed.
Yet none has been used in a terrorist incident so far, he said.
Voters in 28 other states have approved constitutional bans on same-sex marriages, and none has been rejected, he said.
Many other western governments have taken a similar approach, though none has been so open as Australia in articulating its stance.
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After over 1m searches 3, 684 matches have been found, none has been disputed and all have been confirmed by other records.
Yet of the torrent of lurid rumours on the affair in the press, virtually none has been attributed to American officials.
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None has been charged with a crime directly related to the hijackings.
Only a handful of presidential elections have occurred during recessions since World War II and none has been as bad as this one.
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Mr Fox's predecessors have been everything from fervent nationalists to bean-counting economists, but none has been what he is, a businessman to the core.
Though he has hired some 80 law clerks, none has been black (he responds that he has "never excluded consideration of anyone" based on race).
Some of these ideas had merits, but none has been spelled out or followed through, and none has yet made a mark on the electorate.
"Most trucking companies rely on formulas that impose surcharges when fuel prices go up, but none has been more successful at recovering higher fuel costs than Werner, " says Janjigian.
Over the years, states have offered students various options to earn a diploma, but none has been as common and as recognizable as the GED, formerly known as the General Educational Development exam.
Although big landowners are beginning to realise that they must cede some productive land, whether others can show a legal claim to it or not, almost none has been passed on as yet.
Although many of his investments are viewed as promising, none has been nearly as successful as Facebook, to the disappointment of local techies who had hoped his presence would kick-start the country's entrepreneurial scene.
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