>i want to know by which method they got the numbers
<Take total number of women in country (including the unemployed, housewives, etc)
<Add up total amount of money earned by women in employment and divide by this number
<You now have a totally honest 'average' pay for women
<Now take the total number of men in full time employment
<Add up all the pay received by these men and divide by this number
<Act surprised that these two figures are not equal
<Pretend that instead of this showing women choosing to work fewer hours in less profitable jobs (and that you deliberately lowered the female 'average' pay in comparison to the male figure) as you claim in soundbite style speeches and twitter/facebook memes that "WOMEN ARE PAID THIS MUCH LESS FOR THE SAME WORK!!!!!!!"
<Trust in your legions of indoctrinated cultists to boost the signal for your claim and wait for politicians to desperately try to deepthroat this voting block.
It's the same shitty sleight of hand they've been using for decades now.