| Value |
Category |
| 1 |
Inconvenient to use |
| 2 |
Fire hazards |
| 3 |
Not cheaper |
| 4 |
No reason |
| 5 |
Large initial investment |
| DANGER |
|
| ILLEGAL |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.