Statistical summary

Presidential and Majoritarian: 10/59 = 16.9%
Presidential and Proportional: 6/59 = 10%
Presidential and Mixed: 1/59 = 1.6%
Presidential and Majoritarian and Nomination: 6/59 = 10%
Presidential and Majoritarian, Proportional and Nomination: 1/59 = 1.6%
Presidential and Proportionaland Nomination: 1/59 = 1.6%
Presidential and Without an Upper House: 33/59 = 55.9%