Hi,
I have an issue, that may have been discussed on this board before, but I haven't been able to locate any discussions on.
Essentially I have the following data set
2007 2008
XX YY XX YY
cat 1 74 3,681 79 3,806
cat 2 565 2,835 597 2,886
cat 3 987 98,658 1,044...