The provided pie charts illustrate the proportion of five different age groups visitors between 1983 and 2003. All the figures are presented in percentage terms.
Overall, it is clear that visitor numbers of 0-15, 16-24 and over 55 were witnessed an upward trend while the opposite was true for 25-34 and 34-54. In addition, the figure for 34-54 years accounted for the largest share in total over the period despite experiencing the most significant decline.
Regarding the age groups that saw a decrease, in 1983, 34-54 made up half of the share with 50% and 25-34 group registered a smaller portion at 20%. While the figure for 34-54 declined dramatically to 35% in 2003, 25-34 experienced a more slight drop to 12%, making the smallest rate at the end of the timeline.
In terms of vistor numbers for the remaining groups, which recorded an increase tendency, the figures for over 55 and 0-15 in 1983 were 16% and 10%, respectively. Subsequently, by 2003, over 55 occupied above a quarter with 26% while 0-15 witnessed a mere rise by 2%, ending the period with 12%. Finally, 16-24 accounted for the smallest share at the starting point with just 4% before rising steadily to 15% in 2003.