the graph below shows the average monthly change in the prices of three metals during 2014. summarize the information by selecting and reporting the main features and make comparisons where relevant

The line graph illustrates how percentages of prices changed every month in copper, nickel, and zinc during 2014.

Overall

, the number of metals declined over the

period

, excluding copper which remained stable. Fare At the beginning of the year, nickel was the highest price,

while

zinc was the highest price

at the end

. With regards to nickel, it began at a 6% change in January,

then

fell dramatically to -3% in June, before increasing by 1%

at the end

of the

period

.

Likewise

, a 1% change in the price of zinc at the start of the year, reached a peak at 3% in the month after,

then

ever dropped to -1% in the middle of a

period

in which the figure reached the initial change at 2% in December. Turn copper, it was the only metal that remained stable from 2% in January,

then

slightly decreased at approximately -1 in the middle of a

period

, and

this

continually slightly rose until December