substance dependence 

Statements about this table:
when the psychological dependence of benzodiazepine be 2.1 , the pleasure be 1.7
alcohol have a mean of 1.93 and pleasure of 2.3
benzodiazepine have psychological dependence greater than 1.9 with mean count to 2.01 and number of pleasure 1
the total number of psychological dependence , when pleasure be 2.3 and mean be less than 1.9300000000000002 , be 1.7
drug
mean
pleasure
psychological dependence
physical dependence
heroin
3.00
3.0
3.0
3.0
cocaine
2.37
3.0
2.8
1.3
alcohol
1.93
2.3
1.9
1.6
barbiturates
2.01
2.0
2.2
1.8
benzodiazepines
1.83
1.7
2.1
1.8
drug
mean
pleasure
psychological dependence
physical dependence
amphetamine
1.67
2.0
1.9
1.1
cannabis
1.51
1.9
1.7
0.8
ecstasy
1.13
1.5
1.2
0.7
lsd
0.90
1.3
1.1
0.3