ya, too bad Nissan did not see fit to give him a 2013 for trade on his 2011. It would have been less than 2 years to find out definitively whether the batteries were actually improved... As for me? It will take the full 3 years of my lease and I will still have to extrapolate.
If you are intending to use the poll data for something keep in mind that your data will come up with an estimate that is earlier than average because the poll excludes those who have not yet lost a bar.
Our LEAFs are at 21k and 14k and neither is close to losing the first bar.
Red Leaf: 2012 SL, lease, acquired 21 November 2012 Blue Leaf: 2011 SL, purchase (new, was dealer demo), acquired 4 March 2013