Table schema:
CREATE TABLE table_30133_1 (export_volume_of_goods_and_services__percent_change_ VARCHAR, gdp_at_constant_prices__thb_trillions_ VARCHAR)

Question: How many export volume of goods/services values are associated with GDP at constant prices values of 3.072?
SQL: SELECT COUNT(export_volume_of_goods_and_services__percent_change_) FROM table_30133_1 WHERE gdp_at_constant_prices__thb_trillions_ = "3.072"