2-May	3-May	4-May	7-May	8-May	9-May	10-May	11-May	14-May	15-May	16-May	17-May	18-May	21-May	22-May	
Aluminum	23	17	17	0	11	15	8	11	6	13	7	0	0	7	7	
Copper	11	10	8	0	5	14	3	4	2	3	3	5	5	14	8	
Gas	5	2	2	4	6	9	1	5	3	3	15	5	6	14	19	
Total	39	29	27	4	22	38	12	20	11	19	25	10	11	35	34	


Note: Transactions are in pairs, therefore the number of gas transactions for May 22 is  38   etc.