The provided chart illustrates the proportion of four dissimilar musical instruments, which were played by the students in the years 2005, 2010, 2015.
Overall, the guitar and piano exhibited an upward trend over the period. Besides, the guitar was renowned at school while the drums and violin were the least acclaimed.
It is true that the guitar is the best instrument, which is favoured by students and progressed from 2005 to 2015. To begin with, in 2005 the figure for guitars was approximately 11% but after 10 years it peaked at 27% and was the highest of the others. Behind the guitar, the piano is also not inferior when ranked second with nearly the same number of well-liked in 2005.
Secondly, in 2005 and 2010 the drum stayed unchanged at about 6% but at the end surprisingly when it increased gradually to 8%. In contrast, in the years 2005 and 2010 the drum ranked third with 8% but afterward, it dropped down the lowest position when it only had 7%, losing 1%.