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Table 1

Simulated datasets used to compute the criterion.

Stream Year of ejection Year of shower N REV

Leonids 1767 2002 7
Perseids 59 to 1862 2009 1 to 16
τHerculids 1801 to 2006 2000 to 2050 1 to 36
Draconids 1757 to 2005 2011 1 to 31

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