CREATE TABLE table_29508 ("Period" CLOB, "Live births per year" CLOB, "Deaths per year" CLOB, "Natural change per year" CLOB, "CBR*" CLOB, "CDR*" CLOB, "NC*" CLOB, "TFR*" CLOB, "IMR*" FLOAT, "Life expectancy total" CLOB, "Life expectancy males" CLOB, "Life expectancy females" CLOB)

What is the natural change per year for the 7.2 CDR group?
SELECT "Natural change per year" FROM table_29508 WHERE "CDR*" = '7.2'
SELECT "Natural change per year" FROM "table_29508" WHERE "CDR*" = '7.2'