AMMAN — The value of exports of the Amman Chamber of Commerce (ACC) went down by 19.7 per cent during the first quarter of 2021 compared with the same period of 2020, ACC figures showed on Monday.The value of certificates of origin issued by the ACC in the first three months of 2021 to export goods totalled JD151 million compared with JD188 million in the same period of 2020,