The bar graph below shows the number of cars produced (in thousands) by three companies X, Y, and Z in the given years.
Find the total production of cars by Company X in 2012 and 2015 and by Company Y and Company Z in 2014.
Number of cars produced
(in thousands)
A
y
90+
80
70
Company X
:I Company Y
. Company Z
60
50
40
30
20+
10
0
2015