Answer the question on the basis of the information given below:
The table below provides certain demographic details of $30$ respondents who were part of a survey. The demographic characteristics are: gender, number of children, and age of respondents. The first number in each cell is the number of respondents in that group. The minimum and maximum age of respondents in each group is given in brackets. For example, there are five female respondents with no children among these five; the youngest is $34$ years old, while the oldest is $49.$
No. of children

Male

Female

Total

0

1 (38, 38)

5 (34, 49)

6

1

1 (32, 32)

8 (35, 57)

9

2

8 (21, 65)

3 (37, 63)

11

3

2 (32, 33)

2 (27, 40)

4

Total

12

18

30

The percentage of respondents that fall into the $35$ to $40$ years age group (both inclusive) is at least ________
 $6.67\%$
 $10\%$
 $13.33\%$
 $26.67\%$