FIGURE A.3 Ratio of cocaine seizures to purchases in four cities.

TABLE A.1 Median Size (gm) of Purchases of Cocaine Base in Four Cities

Year

Boston

Detroit

New York

Washington

1994

26

22

15

14

1995

14

48

7

7

1996

2

41

6

9

1997

3

23

3

26

1998

6

18

60

21

there. In addition, the relatively low proportions of purchases of below 5 gm shown in Figure A.2 and the larger-than-retail-size median purchase sizes shown in Table A.1 reflect the DEA’s focus on large cocaine dealing operations. Since nearly all cocaine is ultimately sold to consumers in small quantities (less than 5 gm), the total number of retail-size transactions almost certainly exceeds the total number of transactions involving



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