Table 7.--Average copper prices in the United States and on the London Metals Exchange (Cents per pound) ---------------------------------------------------------------------------------------------- Period 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 ---------------------------------------------------------------------------------------------- COMEX FIRST POSITION ---------------------------------------------------------------------------- January----------- 70 46 49 52 93 52 55 64 59 73 117 February---------- 72 47 50 57 106 55 57 65 57 86 129 March------------- 75 53 53 66 121 60 61 70 59 91 97 April------------- 75 56 52 70 129 59 69 66 60 92 89 May--------------- 70 51 50 69 123 55 69 63 60 84 89 June-------------- 65 50 48 76 103 54 71 60 61 83 87 July-------------- 62 53 47 87 87 57 75 57 61 81 98 August------------ 57 50 49 88 80 59 69 53 64 87 93 September--------- 56 49 48 86 64 56 66 55 65 92 93 October----------- 51 47 48 92 61 55 58 56 67 93 94 November---------- 49 46 47 97 61 55 58 55 66 97 92 December---------- 46 47 48 98 55 54 59 59 68 103 84 Average ----- 62 50 49 78 90 56 64 60 62 89 97 ---------------------------------------------------------------------------- 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 ---------------------------------------------------------------------- COMEX FIRST POSITION--Continued ---------------------------------------------------------------------- January----------- 84 72 73 62 59 65 61 123 155 104 February---------- 81 71 76 64 61 64 62 100 134 107 March------------- 82 68 73 68 60 66 64 104 144 124 April------------- 82 69 76 68 64 64 62 98 140 122 May--------------- 80 69 79 63 63 63 66 99 123 120 June-------------- 78 58 75 61 60 63 70 109 112 113 July-------------- 77 63 76 59 61 59 76 99 110 122 August------------ 81 62 74 59 60 58 78 96 125 131 September--------- 77 62 70 57 60 61 81 111 135 130 October----------- 75 64 65 56 61 59 83 133 128 126 November---------- 74 64 63 60 61 59 104 147 114 116 December---------- 73 67 64 58 63 60 127 156 107 112 Average ----- 79 66 72 61 61 62 78 115 127 119 ---------------------------------------------------------------------------- 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 ---------------------------------------------------------------------------- U.S. PRODUCER PRICES, DELIVERED WIRE BAR1/ ---------------------------------------------------------------------------- January----------- 56 51 50 52 69 69 64 66 64 77 119 February---------- 56 50 51 55 69 64 64 69 64 90 134 March------------- 56 51 53 60 69 64 65 73 62 97 106 April------------- 60 53 53 60 69 64 69 74 65 98 95 May--------------- 60 53 53 60 81 64 71 73 65 91 93 June-------------- 60 53 53 60 86 64 71 71 67 88 93 July-------------- 60 53 53 60 86 63 75 68 64 87 104 August------------ 60 53 51 60 86 64 75 64 67 91 101 September--------- 60 53 51 60 83 64 75 61 68 96 99 October----------- 59 53 51 60 78 64 72 61 70 99 99 November---------- 56 52 51 60 76 64 71 61 71 100 97 December---------- 53 50 51 67 73 64 66 62 72 106 89 Average ----- 58 52 52 60 77 64 70 67 67 93 102 -------------------------------- See footnotes at end of table. Table 7.--Average copper prices in the United States and on the London Metals Exchange-Continued (Cents per pound) ---------------------------------------------------------------------------------------------- Period 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 ---------------------------------------------------------------------------------------- U.S. PRODUCER PRICES, DELIVERED WIRE BAR1/--Continued ---------------------------------------------------------------------- January----------- 89 79 80 69 66 72 67 136 164 116 February---------- 86 79 83 71 68 70 68 111 146 119 March------------- 87 77 82 75 67 72 71 112 155 136 April------------- 88 77 83 77 72 71 70 108 150 134 May--------------- 86 78 86 72 72 69 74 107 133 132 June-------------- 85 71 82 70 69 69 77 117 121 125 July-------------- 84 71 83 66 69 65 83 108 119 134 August------------ 87 71 81 66 68 64 85 104 134 143 September--------- 85 71 78 65 68 67 88 118 144 142 October----------- 82 72 72 64 69 66 92 126 138 138 November---------- 81 73 67 68 68 65 110 159 124 128 December---------- 80 74 71 65 70 66 135 168 116 124 Average ----- 85 74 79 69 69 68 85 123 137 131 ---------------------------------------------------------------------------------------------- 1/Quotations for Warrenton Wirebar after Nov. 1988. Sources: Commodity Exchange of New York, Metals Week, and American Metal Market.