Never created a chart from Excel before.

My chart is simple. I simply need to chart 10 columns. 1 for each year
going back.

Actually each year needs to show 2 columns side by side, 1 showing the count
of our total portfolio (avg 180,000), and the other showing our onboard staff
for the given year (avg 50). As you can see already, the problem I'm having
with the chart I created using the wizard, using column type, is that the
value axis goes clear up to 200,000 in 20,000 increments. So his column
shows nice and fine but the staff on board column is not even visible as it
doesn't approach anywhere close to 20,000. How do I edit those values so
that the first ones would be increments of 10 until 100, then boost it out in
20,000 increments?

Also, the category axis shows numbers 1 through 10 for the columns. How do
I change those numbers to read the year I want?