April 8 (Reuters) - Russia is considering raising its base price for calculating the wheat export tax to 17,000 roubles ($212.23) per tonne from 15,000 roubles per tonne, the Vedomosti daily reported, citing two unnamed sources in exporting companies.Prairie has scars on her back and experiences traumatic episodes, but won't burden her adopted parents with her story. Instead, she takes to the internet, finding like-minded friends via the medium of YouTube.In recent days, photos that were posted to several social media platforms showed the documents as if someone had taken them from a secure area, unfolded them from their pocket…