| Variable | Mean | Maximum | Minimum | Standard deviation |
| Population (in millions) | 4.63 | 29.40 | 0.42 | 5.16 |
| Number of insurers | 48.57 | 94 | 13 | 20.56 |
| Top five market share | 0.7080 | 0.9700 | 0.3780 | 0.1463 |
| Herfindahl index | 0.2089 | 0.8645 | 0.0480 | 0.1529 |
| Average loss ratio | 0.79 | 0.94 | 0.51 | 0.63 |
| Guaranteed issue - all products | 0.2533 | 1 | 0 | 0.4364 |
| Guaranteed issue - some products | 0.4200 | 1 | 0 | 0.4952 |
| Guaranteed issue - some or all products | 0.67 | 1 | 0 | 0.47 |
| Guaranteed renewal | 0.9133 | 1 | 0 | 0.2823 |
| Health rate band | 0.5975 | 1 | 0 | 0.2894 |
| Age rate band | 0.1165 | 1 | 0 | 0.2269 |
| Composite rate band | 0.1449 | 1 | 0 | 0.2502 |
| Waiting period (in months) | 16.98 | 72 | 0 | 19.30 |
| Any limit on preexisting condition exclusions | 0.8933 | 1 | 0 | 0.3097 |
| BCBS market share | 0.4195 | 0.9295 | 0.0677 | 0.1927 |
| Commercial market share | 0.2188 | 0.6553 | 0.0352 | 0.1124 |
| HMO market share | 0.3617 | 0.7317 | 0.0000 | 0.1830 |