Table:
text: Substance dependence
Addictive potential
Addictive potential
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
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

Question: What is the total number of pleasures if the psychological dependence is greater than 1.9 and if the drug "benzodiazepines" is in the substance dependence?

Question: What is the highest psychological dependence for substance dependence when pleasure is less than 2.3 when the drug is "cannabis" and when physical dependence is less than 0.8?

Question: What is the median mean for substance dependence when the drug is "alcohol" and when the psychological dependence is greater than a 1.9?

Question: Under substance dependency, what is the sum of pleasure if the drug is "LSD" and if the psychological dependency is greater than 1.1?