How many export volume of goods and services values are associated with GDP at current prices of 161.340?
create table table_30133_1 (export_volume_of_goods_and_services__percent_change_ varchar, gdp_at_current_prices__usd_billions_ varchar, PRIMARY KEY (export_volume_of_goods_and_services__percent_change_))
select count(export_volume_of_goods_and_services__percent_change_) from table_30133_1 where gdp_at_current_prices__usd_billions_ = "161.340"