i'm peter golata public policy and the san francisco department of the environment. thank you for your comments, commissioner. i just want to clarify on the data piece. in the findings of the proposed legislation t department of environment did an informal survey after the 10-cent charge went into effect in 2012 and we found we had about a 60% adoption rate at that 10 cents. so we know that based on the data that we have from other cities and that have implemented the increased charge that they are see tag go to 90. >> of course it is an additional incentive. it is a 15-cent additional incentive. the question is, you have a data point which now is outdated. good news. since that time, there is a huge amount of press about this z opportunity and for me to tell my friend, what, you didn't bring a bag? what an idiot. fit's still 60%, i should be shocked. i'll bet it is higher than that. what is it? do another informal study? >> i appreciate your optimism. >> it has been years. >> we are challenged with the consumer behavior and the level op consumption that we are facin