The given line graph delineates the quantity of participants in 4 different sports, according to statistics recorded in an area from 1985 to 2005.
Overall, while the figures for tennis and rugby underwent drastic changes, those for the other sports fluctuated marginally over the 20-year period. In addition, badminton attracted the lowest participation level throughout the surveyed timescale, whereas rugby went from the most sought-after sport to the least-favored.
An in-depth analysis of the chart reveals that rugby and tennis experienced contradictory trajectories throughout the examined timescale. To specify, despite starting off as the most-favored sport attracting 250 local residents, the level of rugby participation continuously fell down to 200 in the year 1995. The figure is equivalent to that for tennis recorded in the same year, although the number of rugby players was innitially higher to that of tennis by 100. In the last 10 years, there was a steady rise in the quantity of tennis participants before its peak at around 220 eventually. In stark contrast, the figure for rugby went through a dramatic fall and plummeted at only 50, the lowest participation rate among 4 sports examined in the last year.
With regard to the other two sports, a modest number of over 50 people took part in badminton, making it the least-favored sport in the first year. Over time, the level of participation in badminton experienced negligible fluctuation, hovering around at 50. Likewise, the quantity of basketball players plateaued at round 80 throughout the span of 20 years with minimal changes.