The bar graph displays the changes in three different teams’ scores throughout four seasons.
Overall, almost all groups demonstrated a decline, except for team A, which slightly increased in the last season. All teams’ trends had fluctuations. Nevertheless, team B had the highest score in 2002 and remained in the top position in 2005.
In terms of group A, it got five points at the beginning of the period and kept surging to reach its best mark, which was 35 points, then fell sharply to eight points in 2005; this score surpassed group C’s score. A similar trend was observed in group C, which rose five points in a year and gradually dropped to five points, reaching a nadir among all teams at the end of the observation.
On the other hand, team B showed a contrasting trend, owing to the fact that at the start, it recorded 82 points. Later, its score decreased to nearly half its score, to 43 points in 2004; thereafter, it went up to 55 points in 2005, establishing itself as the best group.