SELECT SUM(IIf([SYR_CTR_START_MONTH]=1, SYR_SUM_AMZ_INV_AMT, 0)) AS JAN,
SUM(IIf([SYR_CTR_START_MONTH]=2, SYR_SUM_AMZ_INV_AMT, 0)) AS FEB,
SUM(IIf([SYR_CTR_START_MONTH]=3, SYR_SUM_AMZ_INV_AMT, 0)) AS MAR,
SUM(IIF([SYR_CTR_START_MONTH] = 4 ,SYR_SUM_AMZ_INV_AMT ,0)) AS APR ...