CSOWR Ratio-Help

Hi all,

i am having trouble trying to find the CSOWR Ratio to determine the strength and weakness of a currency.
i tried to match the one with the book titled “Making money in forex without giving up your day job” by Ryan o’kee, could any kind soul please guide me on this. Thanks! i have been trying to match the example on the book for hours !

Australia, January–September 2009
Jan Feb March
Interest rate 4.25 3.25 3.25
GDP 0.01 0.01 –0.05
CPI –0.3 –0.3 –0.3
Retail sales 0.4 3.8 0.2
Employment –1.2 1.2 1.8
Trade balance 1.45 0.59 0.97
CSOWR 0.77 1.43 0.98

for example, i am having trouble trying to find the GDP of 0.01 …etc