| 3 and 4 year olds |
|
| % | N |
No time | 9.4 | 331 |
30 minutes or less | 68.5 | 2416 |
About one hour | 15.7 | 554 |
About two hours | 4.2 | 149 |
Three hours or more | 2.2 | 76 |
Total | 100.0 | 3526 |