Thanks, Very helpful, but how do I just get it to go year to year, no interval... 2012, 2013, 2014 etc... I am trying to show year over year change. What is happening is that my data is as I said 2012, 2013, etc.. Well if I have the interval at one year I get two sets of labels, one for 2012 and an additional label for 2013. Also the start, span, and end locks seem to be mutually exclusive.