CREATE TABLE table_34023 ("Rank" CLOB, "City" CLOB, "Population" FLOAT, "Area  ( km 2  ) " FLOAT, "Density  ( inhabitants/km 2  ) " FLOAT, "Altitude  ( mslm ) " FLOAT)

What is the lowest density of serravalle scrivia?
SELECT MIN("Density (inhabitants/km 2 )") FROM table_34023 WHERE "City" = 'serravalle scrivia'
SELECT MIN("Density (inhabitants/km 2 )") FROM "table_34023" WHERE "City" = 'serravalle scrivia'