| Country | Stability in the membership of the party system participants | Stability of inter-party competition | Stability in party linkage with society: Change in parties’ ideological positions | Final PSI value |
| USA | 1.15 | 1.62 | 1.39 | |
| Uruguay | 1.40 | 1.16 | 0.07 | 1.29 |
| Mexico | 1.29 | 0.85 | 1.63 | 1.19 |
| Chile | 0.78 | 0.79 | 1.95 | 0.93 |
| Dominican Republic | 1.11 | 0.53 | -0.90 | 0.75 |
| Honduras | 0.49 | 0.72 | 0.50 | 0.64 |
| El Salvador | 0.17 | 0.80 | 0.75 | 0.54 |
| Brazil | 0.47 | 0.43 | 1.04 | 0.53 |
| Russia | 0.03 | 0.31 | 0.17 | |
| Costa Rica | 0.19 | 0.14 | -0.80 | 0.10 |
| Panama | 0.04 | -0.02 | 0.61 | 0.06 |
| Nicaragua | 0.14 | -0.18 | 0.21 | -0.01 |
| Paraguay | -0.40 | 0.32 | -1.42 | -0.15 |
| Colombia | -0.79 | -0.62 | -1.11 | -0.79 |
| Ecuador | -0.82 | -1.02 | -0.73 | -0.97 |
| Argentina | -1.29 | -0.71 | -0.30 | -1.02 |
| Bolivia | -0.81 | -1.39 | -0.25 | -1.12 |
| Peru | -1.28 | -1.18 | -1.54 | -1.35 |
| Venezuela | -1.43 | -1.37 | 0.59 | -1.36 |
| Guatemala | -1.30 | -1.52 | -0.32 | -1.44 |