mr. ben rosenfield about some of the -- the last woman that spoke about two thirds funding and gasby changes in rules opposed to being fully funded 10 years over time. could you -- it's a broad statement i just made. i actually didn't ask a question but maybe you can give some background on two thirds versus fully funded and what that means and how it relate to the proposal that supervisor farrell put before us? >> sure. ben rosenfield controller. as i understand the comment was made it's suggested that the kind of escape valve as described could be triggered only once the funds reach two thirds fund status. i think the implication of that -- assuming all assumptions are met, we expect peshent to 100% and roug occur in that period and reach two thirds funded and if those assumptions are met around year 20-25 and that would effectively say there is no possible modifications to the rules regardless what happens with medical inflation, with health care in the u.s. or in california, with any of the assumptions that are being made here. if any of them behave drastically different than we expect t