'CH' => array( // Cantons of Switzerland.
        'AG' => __( 'Aargau', 'woocommerce' ),
        'AR' => __( 'Appenzell Ausserrhoden', 'woocommerce' ),
        'AI' => __( 'Appenzell Innerrhoden', 'woocommerce' ),
        'BL' => __( 'Basel-Landschaft', 'woocommerce' ),