| Value | Category | Cases | |
|---|---|---|---|
| 1 | Chemicals that are present high up in the atmosphere damage | 121 |
6.3%
|
| 2 | The material that the balloon is made of cannot be stretched | 238 |
12.3%
|
| 3 | The balloon catches fire from the Sun s rays when it reaches | 163 |
8.4%
|
| 4 | The pressure level inside the balloon increases steadily as | 1410 |
73%
|
| 95 | Valid Skip | 0 | |
| 96 | Not Reached | 0 | |
| 97 | Not Applicable | 0 | |
| 98 | Invalid | 0 | |
| 99 | No Response | 7 | |
| Sysmiss | 21112 |