Fig. 2

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Stacked histogram of the orbital periods of all 991 planets in the period catalogue shown for each planet multiplicity: systems with three (magenta), four (green), five (blue), and six to eight (red) detected planets. All four multiplicities have planets spanning the entire range of orbital periods from 0.32 to 170 000 days. The median of the total distribution is 12.6 days.
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