Histogram of a 1gb file

Greetings,

I am very new to matlab, and I'm at somewhat of a loss when trying to make a histogram of an extremely large data file. There are 10,000,000 data points (single column) from a MC simulation--the values of which are dispersed over an interval from -1:1. I need to plot a histogram of this with 200 bins, where the frequency is normalized over the dataset (i.e. frequency bin x/10,000,000). What is the easiest way to do this? The large size of the file causes everything I've tried to seize.

Mark