^{How do I construct the constant population growth rate when using the dat below:}

rgdpna	Real GDP at constant 2017 national prices (in mil. 2017US$)
rconna	Real consumption at constant 2017 national prices (in mil. 2017US$)
rnna	Capital stock at constant 2017 national prices (in mil. 2017US$)
labsh	Share of labour compensation in GDP at current national prices
delta	Average depreciation rate of the capital stock
emp	Number of persons engaged (in millions)
I(t): Imputed I	Imputed Investment Data
Y = C + I
n(t): emp growth rate