Month Sales values Year on year growth

$1$ Jun$-18$ R $1915571840006\mathrm{.}11\%$

$2$ Jul$-18$ R $1964608170009\mathrm{.}18\%$

$3$ Aug$-18$ R $1963568160007\mathrm{.}64\%$

$4$ Sep$-18$ R $20109562700010\mathrm{.}74\%$

$5$ Oct$-18$ R $20255205700011\mathrm{.}27\%$

$6$ Nov$-18$ R $2011537300004\mathrm{.}89\%$

$7$ Dec$-18$ R $1964608170005\mathrm{.}31\%$

$8$ Jan$-19$ R $2015193710009\mathrm{.}17\%$

$9$ Feb$-19$ R $1990060010005\mathrm{.}99\%$

$10$ Mar$-19$ R $2013396070007\mathrm{.}30\%$

$11$ Apr$-19$ R $20686944200015\mathrm{.}21\%$

$12$ May$-19$ R $2004637050003\mathrm{.}92\%$

$13$ Jun$-19$ R $2037341510006\mathrm{.}36\%$

In June $2019$ the manufacturing industry in South Africa sold goods to the value of R$203\mathrm{.}7$ billion compared to South

Africa's total imports of R $103754352076.$ Thus the manufacturing to total imports ratio is currently sitting at $(1\mathrm{.}97).$ So

basically for every R$1$ in goods manufactured locally, $50\mathrm{.}7$c is imported. Validate the impact or extent of the problem you

have identified $($calculate mean, standard

deviation and control limits$).$

Plot the coordinates on control chart, label the

graph.