| Country | Mean electoral volatility | Cumulative electoral volatility | Mean Z-score | ||
| President | Parliament | President | Parliament | ||
| USA | 1.62 | 1.85 | 1.23 | 1.78 | 1.62 |
| Uruguay | 1.41 | 1.04 | 1.03 | 1.17 | 1.16 |
| Mexico | 0.87 | 0.65 | 1.21 | 0.66 | 0.85 |
| El Salvador | 0.96 | 1.01 | 0.97 | 0.26 | 0.80 |
| Chile | 0.16 | 0.86 | 0.92 | 1.20 | 0.79 |
| Honduras | 1.26 | 0.88 | 0.40 | 0.33 | 0.72 |
| Dominican Republic | 0.63 | 0.32 | 0.38 | 0.78 | 0.53 |
| Brazil | 0.07 | 0.65 | 0.52 | 0.49 | 0.43 |
| Paraguay | -0.68 | -0.08 | 1.03 | 1.02 | 0.32 |
| Russia | 0.91 | -0.09 | 0.75 | -0.35 | 0.31 |
| Costa Rica | 0.91 | 0.42 | -0.38 | -0.38 | 0.14 |
| Panama | -0.82 | 0.26 | 0.39 | 0.10 | -0.02 |
| Nicaragua | 0.01 | -0.57 | 0.02 | -0.18 | -0.18 |
| Colombia | -0.52 | -0.41 | -1.18 | -0.37 | -0.62 |
| Argentina | -1.11 | -0.32 | -0.71 | ||
| Ecuador | -0.91 | -0.55 | -1.57 | -1.04 | -1.02 |
| Peru | -1.70 | -1.93 | -0.79 | -0.32 | -1.18 |
| Venezuela | -0.64 | -1.56 | -1.61 | -1.68 | -1.37 |
| Bolivia | -0.80 | -1.37 | -1.60 | -1.79 | -1.39 |
| Guatemala | -1.63 | -1.38 | -1.39 | -1.70 | -1.52 |