CREATE TABLE table_64157 ("Year" FLOAT, "Tournament" CLOB, "Venue" CLOB, "Result" CLOB, "Event" CLOB, "Points" CLOB)

What average year has international meeting & national championships as the tournament?
SELECT AVG("Year") FROM table_64157 WHERE "Tournament" = 'international meeting & national championships'
SELECT AVG("Year") FROM "table_64157" WHERE "Tournament" = 'international meeting & national championships'