create table x(a smallint)
declare @a smallint
set @a = 1990

while @a <= 2012
begin

    insert into x
    select @a as a
    set @a=@a+1

end


declare @i int
set @i = 0

while @i < 200000
begin

    select

        0.0 + cast(power(cast(0.7000000 as float),  abs(y.a- b.a)) as decimal(10, 7)) as w

    into #x
    from x y
    inner join x b on b.a between y.a - 4 and y.a + 4

    drop table #x

    print(@i)
    set @i = @i+1

end