CREATE TABLE table_23076 ("Rank" TEXT, "Name" TEXT, "Lifespan" TEXT, "Country" TEXT, "Wins" FLOAT, "Majors" FLOAT, "Winning span" TEXT, "Span  ( years ) " FLOAT)

What is the winning span of the name martin kaymer?
SELECT "Winning span" FROM table_23076 WHERE "Name" = 'Martin Kaymer'
SELECT "Winning span" FROM "table_23076" WHERE "Name" = 'Martin Kaymer'