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 the shift from zero percent to 100% and roughly occur in