The given line charts illustrate the criminal population in both genders in an European country over a 90-year period, commencing in 1911. Overall, while the number of male prisoners followed an upward trend, the opposite was true for females. In addition, the quantity of prisoners which were male gender outnumbered their counterparts.
Regarding the first line graph, the figure of male prisoners was approximately 19,000 in 1911. It remained stable until the year 1931 when it recorded a slight drop to 10,000. After that, the male prison population grew rapidly and then reached around 20,000 in 1951. The data remained stable for the next 20 years before experiencing a rapid growth in 1981 with nearly 40,000. After that, it grew considerably and then gained the highest peak with 45,000 in 2001.
Moving onto the other graph. In 1911, the number of female prisoners ranked the first with approximately 3,200. The data followed a downward trend during the next 20 years before recording the lowest quantity in 1941 with nearly 6,000. From 1941 to 1961, the figure grew rapidly and then again witnessed a slight drop to nearly 8,000 in 1971. In the final period, the number of females who commit a crime experienced a rapid growth and reach the final data around 1,800 in 2001.