NC  historical mineral production history
Year Crushed stone (thousand metric tons) Crushed stone - Value (thousand dollars) Construction sand and gravel (thousand metric tons) Construction sand and gravel - Value (thousand dollars) Industrial sand and gravel (thousand metic tons) Industrial sand and gravel - Value (thousand dollars) Clay (thousand metric tons) Clay - Value (thousand dollars)
1971 28,047 $58,026 12,918 $14,690 3,177 $3,802
1972 29,299 $62,741 11,633 $13,812 3,504 $4,473
1973 35,182 $80,065 14,422 $19,327 628 $2,104 3,728 $5,057
1974 31,483 $71,583 11,597 $20,844 952 $3,869 3,104 $4,648
1975 25,638 $65,825 7,411 $15,610 489 $2,691 2,342 $4,094
1976 27,977 $78,632 7,538 $14,344 671 $3,943 2,494 $4,677
1977 29,765 $87,254 8,013 $17,267 777 $4,003 2,741 $4,989
1978 34,189 $108,867 9,484 $22,246 900 $5,834 3,213 $9,067
1979 36,164 $125,319 8,740 $21,618 1,423 $8,155 3,001 $8,385
1980 31,537 $125,019 7,110 $20,910 1,335 $7,825 2,587 $7,307
1981 26,157 $117,092 5,710 $18,330 1,121 $10,440 1,914 $6,838
1982 24,948 $117,600 4,716 $15,395 650 $4,878 1,427 $5,243
1983 30,567 $145,001 5,080 $16,900 967 $11,689 1,876 $6,680
1984 34,564 $168,000 5,726 $18,159 1,051 $12,864 2,068 $8,986
1985 37,894 $194,818 5,534 $19,500 1,174 $13,086 2,369 $10,476
1986 39,463 $206,500 6,843 $23,127 1,328 $16,656 2,364 $10,970
1987 44,313 $237,181 7,802 $30,100 1,074 $15,329 2,878 $15,282
1988 45,813 $250,000 10,048 $38,459 1,130 $15,953 2,832 $16,349
1989 46,737 $257,976 10,160 $43,700 1,476 $19,902 2,204 $15,528
1990 47,990 $276,200 10,644 $44,872 1,068 $15,338 2,179 $9,355
1991 42,188 $243,920 8,979 $35,000 1,064 $15,565 2,063 $9,015
1992 44,089 $262,400 9,283 $42,717 1,088 $17,533 2,120 $9,775
1993 47,787 $297,657 11,100 $53,800 1,344 $18,597 2,381 $11,165
1994 52,000 $338,000 12,000 $59,400 W W 2,200 $11,100
1995 57,200 $380,000 10,700 $50,300 1,460 $16,100 2,250 $10,100
1996 57,000 $388,000 11,300 $58,400 1,640 $26,900 2,400 $11,100
1997 66,000 $460,000 12,800 $66,000 1,550 $23,600 2,550 $23,700
1998 65,000 $507,000 10,400 $59,500 1,630 $27,200 2,510 $12,100
1999 71,400 $505,000 9,960 $53,900 1,440 $24,800 2,390 $11,300
2000 70,000 $491,000 12,300 $69,000 1,670 $27,500 2,430 $18,700
Thousands of metric tons
Crushed stone (thousand metric tons) Construction sand and gravel (thousand metric tons) Industrial sand and gravel (thousand metic tons) Clay (thousand metric tons)
1971 28,047 12,918 0 3,177
1972 29,299 11,633 0 3,504
1973 35,182 14,422 628 3,728
1974 31,483 11,597 952 3,104
1975 25,638 7,411 489 2,342
1976 27,977 7,538 671 2,494
1977 29,765 8,013 777 2,741
1978 34,189 9,484 900 3,213
1979 36,164 8,740 1,423 3,001
1980 31,537 7,110 1,335 2,587
1981 26,157 5,710 1,121 1,914
1982 24,948 4,716 650 1,427
1983 30,567 5,080 967 1,876
1984 34,564 5,726 1,051 2,068
1985 37,894 5,534 1,174 2,369
1986 39,463 6,843 1,328 2,364
1987 44,313 7,802 1,074 2,878
1988 45,813 10,048 1,130 2,832
1989 46,737 10,160 1,476 2,204
1990 47,990 10,644 1,068 2,179
1991 42,188 8,979 1,064 2,063
1992 44,089 9,283 1,088 2,120
1993 47,787 11,100 1,344 2,381
1994 52,000 12,000 0 2,200
1995 57,200 10,700 1,460 2,250
1996 57,000 11,300 1,640 2,400
1997 66,000 12,800 1,550 2,550
1998 65,000 10,400 1,630 2,510
1999 71,400 9,960 1,440 2,390
2000 70,000 12,300 1,670 2,430
Thousands of dollars
Crushed stone - Value (thousand dollars) Construction sand and gravel - Value (thousand dollars) Industrial sand and gravel - Value (thousand dollars) Clay - Value (thousand dollars)
1971 $58,026 $14,690 0 $3,802
1972 $62,741 $13,812 0 $4,473
1973 $80,065 $19,327 $2,104 $5,057
1974 $71,583 $20,844 $3,869 $4,648
1975 $65,825 $15,610 $2,691 $4,094
1976 $78,632 $14,344 $3,943 $4,677
1977 $87,254 $17,267 $4,003 $4,989
1978 $108,867 $22,246 $5,834 $9,067
1979 $125,319 $21,618 $8,155 $8,385
1980 $125,019 $20,910 $7,825 $7,307
1981 $117,092 $18,330 $10,440 $6,838
1982 $117,600 $15,395 $4,878 $5,243
1983 $145,001 $16,900 $11,689 $6,680
1984 $168,000 $18,159 $12,864 $8,986
1985 $194,818 $19,500 $13,086 $10,476
1986 $206,500 $23,127 $16,656 $10,970
1987 $237,181 $30,100 $15,329 $15,282
1988 $250,000 $38,459 $15,953 $16,349
1989 $257,976 $43,700 $19,902 $15,528
1990 $276,200 $44,872 $15,338 $9,355
1991 $243,920 $35,000 $15,565 $9,015
1992 $262,400 $42,717 $17,533 $9,775
1993 $297,657 $53,800 $18,597 $11,165
1994 $338,000 $59,400 0 $11,100
1995 $380,000 $50,300 $16,100 $10,100
1996 $388,000 $58,400 $26,900 $11,100
1997 $460,000 $66,000 $23,600 $23,700
1998 $507,000 $59,500 $27,200 $12,100
1999 $505,000 $53,900 $24,800 $11,300
2000 $491,000 $69,000 $27,500 $18,700