Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Drug | Mean | Pleasure | Psychological dependence | Physical dependence |
| --- | --- | --- | --- | --- |
| Heroin | 3.0 | 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 | 0.9 | 1.3 | 1.1 | 0.3 |
Question:
What is the total number of Pleasure(s), when Psychological Dependence is greater than 1.9, and when Drug is "Benzodiazepines"?
Answer:
1.0