The graph below shows the average monthly change in the prices of three metals during 2014.

The provided line graph shows the monthly changes in the value of Copper, Nickel and Zinc in 2014.

Overall

, Nickel had the most

fluctuated

Wrong verb form

fluctuating

show examples

prices throughout the year. It reached the top position in January at 6%,

then

it went down to the bottom position at -3% in June.

First,

the change in prices of Copper gradually declined from 2% in January to -0.5% in June. After that, it increased to 1% in July.

In addition

, it remained stable until September. From October to November, it slightly decreased to 0.7%

Finally

, it went up to 1.5% in December.

Second,

the change in values of Nickel dramatically dropped from 6% in January to -3% in June.

However

, it rose to -1% in July and stayed there until September. In October, it slightly decreased to -2% and

then

inclined to 1% in November.

Third,

the change in prices of Zinc was unstable. During the first half of the year, it was high.

On the other hand

, the average figure from the second half of the year was lower than zero.