The given line graphs demonstrate the proportion of people attending music concerts in all ages from 2010 to 2015.
Overall, it is clear that 55-64 group witnessed an downward trend, while most of the latter increased significantly. In addition, people being older 75 years old had the lowest percentage during the period, while 25-44 years old group preferred concerts the most often almost the time.
According to the graphs, the 25-44 group stood at 40%, which was the secondary highest proportion in 2010. After that, this figure experienced a rapidly rise at about 70% from 2010 to 2015 (the most popular group). Similarly, the percentage of people in 45-54 and older 75 years old groups increased considerably over the period. The popularity of 45-54 group going to music concerts had a slow drop from 40% to over 30% in the first two years, then rose steeply to nearly a half in last years. In contrast, despite an increase from 10% to a fifth in 2011, there was a slight fall to about 12% from 2011 to 2013, then this older 75 years old group rose again to 20% in the last year.
In terms of 2010 and 2015, the youngest group had the most percentage of attendants to music concerts in 2010. There was a fluctuation between 40% and 50% of this figure in the period. In 2010, there was around 25% people in 55-64 years old group chose to listen to the music in concerts, then this proportion decreased slowly to 20% in 2015.