By DDL and sample data, we mean you need to post something like this so people helping can have a table on their system to work with.
create table #test
(
mydatevarchar(6),
prj_idint,
amountnumeric(5)
)
insert #test
select 'Jan12', 1, 1000
union all select 'Feb12', 1, 1500
union all select 'Apr12', 1, 1800
union all select 'July12', 1, 1200
union all select 'Jan12', 2, 500
union all select 'Apr12', 2, 1000
Besides being potentially tedious work for the helper, they may not be able to give you correct help if they guess incorrectly as to what data types your columns are.