select
    n_name,
    o_year,
    sum(amount)
from
    (
        select
            n_name,
            YEAR(o_orderdate) as o_year,
            l_extendedprice * (1 - l_discount) - ps_supplycost * l_quantity as amount
        from
            part, supplier, lineitem, partsupp, orders, nation
        where
            s_suppkey = l_suppkey
            and ps_suppkey = l_suppkey
            and ps_partkey = l_partkey
            and p_partkey = l_partkey
            and o_orderkey = l_orderkey
            and s_nationkey = n_nationkey
            and p_name like '%green%'
            and s_acctbal :varies
            and ps_supplycost :varies
    ) as profit
group by
    n_name, o_year
order by
    n_name, o_year desc