Why do I get values above 1 in ksdensity?

Hi everyone, I've been plotting a ksdensity on a variable distribution, I noticed on the y axis values above 1. Isn't supposed to be a [0-1] probability of occurence of the xaxis value? Thanks

[Walter Roberson]

duplicates http://www.mathworks.com/matlabcentral/answers/307196-why-do-i-get-values-above-1-in-ksdensity