Question 20

Explanation

To calculate the percentage increase in the number of drug users in the $20-24$ age range from 2005 to 2006, we need to identify the number of users in both years based on the table.

• Number of users in 2005 ($\text{Initial}$): $5503$
• Number of users in 2006 ($\text{Final}$): $8383$

First, we calculate the absolute increase in the number of users:

Next, we calculate the percentage increase relative to the initial number (year 2005):

Rounding to one decimal place, the percentage increase is $52.3\%$.