Table: concrete_properties
Columns: dry_density_kg_m3
7_day_compressive_strength_n_mm2
thermal_conductivity_w_mk
modulus_of_elasticity_kn_mm2
drying_shrinkage

Question: If the dry density is 800, what is the drying shrinkage %?
SQL: SELECT "drying_shrinkage" FROM concrete_properties WHERE "dry_density_kg_m3" = 800