I have a dataset that looks like this:
Date AE AA AEF Percent 1/1/2012 1211 1000 3556 0.03 1/2/2012 100 2000 3221 0
ggplot does not necessarily interpret dates well. Have you tried transforming the data into a timeseries
Something like:
# Make data a time series, starting Jan 2009 data.ts<-ts(data, start=c(2009,1),frequency=52)
Then plot it using ggplot.