The European Union is still struggling to achieve gender parity in the workplace, according to data compiled by Eurostat. For the economy as a whole, women's gross hourly earnings were on average 16.4 percent below those of men in 2013. The gap was most pronounced in Estonia where there was a 30 percent difference in what men and women make per hour. Spain, the United Kingdom and Germany also found themselves at the wrong end of the table. Slovenia has the narrowest gender gap when it comes to pay at just 3.2 percent.