I don't know that you have to reference the table again as long as all the data is within the same table. You should be able to do a cross-tab and get the desired results.

DECLARE @CurrentYear integer
SET @CurrentYear = year(getdate())

SELECT
g.name,
SUM(CASE WHEN i.year_date = @currentyear THEN i.total_inf ELSE 0 END) AS currentyear,
SUM(CASE WHEN i.year_date = @currentyear-1 THEN i.total_inf ELSE 0 END) AS previousyear,
SUM(CASE WHEN i.year_date = @currentyear-2 THEN i.total_inf ELSE 0 END) AS secpreviousyear,
FROM geographic g
LEFT OUTER JOIN inforce_state i ON g.geo_code = i.geo_code
WHERE
g.operations_ind = 'Y' AND
g.company_code = '1' AND
i.lob_code = '00' AND
i.premium_policy_ind = 'P'
GROUP BY g.name
ORDER BY i.total_inf DESC

That should get you started.

-Mike