Imports at New York.
--The total amount of imports at the port of New York for the week ending on the 18th, was $2,328,479; for the same week in 1860, $5,517,587. Since 1st January, $66,424,138; for the same period last year, $91,215,143. Exports since 1st January, $47,213,318; for the same period in 1860, $20,691,103.