CREATE TABLE table_26068 ("Period" TEXT, "Live births per year" TEXT, "Deaths per year" TEXT, "Natural change per year" TEXT, "CBR*" TEXT, "CDR*" TEXT, "NC*" TEXT, "TFR*" TEXT, "IMR*" FLOAT, "Life expectancy total" TEXT, "Life expectancy males" TEXT, "Life expectancy females" TEXT)

How many imr* have 64.3 life expectancy males?
SELECT MIN("IMR*") FROM table_26068 WHERE "Life expectancy males" = '64.3'
SELECT MIN("IMR*") FROM "table_26068" WHERE "Life expectancy males" = '64.3'