| Value | Category | Cases | |
|---|---|---|---|
| 1 | On moderate exertion | 18 |
27.7%
|
| 2 | On minimal exertion | 37 |
56.9%
|
| 3 | At rest | 10 |
15.4%
|
| 8 | Unknown | 0 |
0%
|
| 9 | Missing | 8 | |
| Sysmiss | 7399 |