Statistical summary

Centralized Control and Majoritarian System: 31/105 = 30%
Centralized Control and Proportional System: 40/105 = 38%
Centralized Control and Mixed System: 31/105 = 30%
Centralized Control and Majoritarian and Nomination System: 2/105 = 2%
Centralized Control and Proportional and Nomination System: 1/105 = 1%