Althought b experienced a fluctuation in the first five years between 70, its opening figure, and 80, its peak, after which this figure settled down in the last five years and, ending at 56. The ball also had a similar patter in the first fivers, growing from 68 to 81, this number plummeted , hitting The value aws fluctuated between 56, its starting point, and 70, its peak, this figure settled down afterwards, ending 65. Even though D had a similar pattern of increase, climbing from 58 to 64 in the first half decade, thereafter, this figure plummeted, hitting a 21 and finished there,Overall, what stands out from this graph is that even though science related subject was most popular among the youngest students’ group, those who aged between above 45 years old prefer non science.