The values from the second column of the table are extracted as follows:
\[
\text{values} = [12, 16, 19, 24, 31, 38]
\]
Step 2: Calculate the Average
To find the average of these values, we use the formula:
\[
\text{Average} = \frac{\sum \text{values}}{n}
\]
where \( n \) is the number of values. In this case:
\[
\text{Average} = \frac{12 + 16 + 19 + 24 + 31 + 38}{6} = \frac{140}{6} \approx 23.3333
\]
Final Answer
The average of the values is approximately \( 23.3333 \). Thus, the final answer is:
\[
\boxed{23.3333}
\]