biggest bike share system in the united states and the longest running big one and in many ways very analogo u.s. to san francisco and we're seeing 1.9 trips per day per bike so we've exceeded performance in the dc system and another interesting fact total mileage ridden estimated using average trip length almost five times around the earth. >> excuse me, just in terms of experience so far with availability at stations -- i know you don't want it to be empty so in terms of redistribution and overall management how is that going? >> looks like it's going well. my understanding is it's met all of the contractual obligations in terms of not exceeding certain performance measures but we've heard from certain members of the public that there are times where they were un able to find a bicycle and so you know we're working with the vendor to improve performance there but i don't think there's any contractual issues there it is challenging and even 2 months after launch still getting the hang of things and we also have in our warehouse a number of docks and we'll address some of those issues. >> would