The graph provides data about male and female membership throughout the period 1980-2010.
Overall, the graph for men showed fluctuating trend, reaching its greatest point in 2005. The graph for women, however, followed a more steady trajectory, topping out both in 1995 and 2005. Notably, both female and male figures reached parity three times over the course of 1990 to 2005.
Between 1980 and 1985, gym membership nearly doubled across both genders: male membership rose sharply from 2000 to just under 4000, while female membership increased from 1000 to almost 2000. Nevertheless, during 1985-1995, the male membership fluttered around 3600, before plummeting to approximately 1600, whereas the female membership edged down to about 1800 by 1990, ultimately surging to about 2800 by the end of the period.
Over the period from 1995 to 2005, the male membership peaked abruptly at 5000; by comparison, the female membership declined to around 2100 by 2000, before rising to nearly 2800 by 2005. Finally, from 2005 to 2010, the male membership plunged to around 800 and the female membership gradually contracted to just under 2000.