The given bar charts illustrate the subject choice trends for three science disciplines among male and female undergraduate students in 1992 and 2012.
According to the bar charts, the proportion of female students started at 30% in 1992, while male students accounted for a significantly higher percentage of nearly 70%. Over the 20-year period, the data demonstrates a steady increase in female student enrolment, reaching approximately above 40% in 2012, while the proportion of male students declined to 50%.
Meanwhile, there was a peak in student enrolment for biology at roughly 65% in 1992. Furthermore, the chart reveals a dip in the percentage of students opting for computer science in 1992, at under 5%. Following this, the data underwent a gradual decline in students choosing biology, reaching just over 40% in 2012, but it shows a substantial increase for computer science at over 20% by 2012. Throughout the period, the percentage of physics students remained relatively stable, with a consistent 20% enrolment across both years.
Looking from an overall perspective, it is apparent that the bar charts clearly highlight a growing number of female students and shifting preferences in science subjects among undergraduates over the 20-year period, with computer science gaining popularity and biology experiencing a decline.