Web sites with additional data and table and maps:
WHO - Global Database on IDD - information by COUNTRY (click here)
This database on iodine deficiency includes data at national and sub-national level on goitre prevalence and urinary iodine.
ICCIDD - CIDDS Database - Current IDD Status Database (click here)
Maps and data provided at global, regional and country levels.
UNICEF - Statistics - (click here)
Map and tables provided at global and national level.