setShowXValues(false) doesnt work on line chart

I have a grpah showing too many values along the X-axis. What is the best way to reduce this number ? I've even tried to remove, using setShowXValues(false), but this doesnt work.

Any help most appreciated.

Thanks

I also encountered the same problem,May I ask how do you solve it? Thanks a lot.

myChart.setDataArray([['2001-1', 0.000], ['2006-1', 0.000], ['2001-10', 0.000], ['2002-1', 0.000], ['2002-3', 0.000], ['2002-5', 0.000], ['2002-7', 0.000], ['2002-9', 0.000], ['2002-11', 0.000], ['2003-5', 0.270], ['2003-7', 0.580], ['2003-9', 0.560]]);

myChart.setShowXValues(false); it doesn't work.