Select 'Google Ad' as Foo, 8 as [3 mths], 6 as [6 mths], 3 as [9 mths], 0 as [1 yr] union all
Select 'Yahoo Ad' as Foo, 4 as [3 mths], 6 as [6 mths], 3 as [9 mths], 3 as [1 yr] union all
Select 'Friend' as Foo, 3 as [3 mths], 45 as [6 mths], 3 as [9 mths], 1 as [1 yr] union all
Select 'Print Ad' as Foo, 2 as [3 mths], 3 as [6 mths], 3 as [9 mths], 2 as [1 yr]
Have fun!! 
Harsh Athalye
India.
"Nothing is Impossible"