CREATE TABLE table_name_91 (psychological_dependence VARCHAR(255), pleasure VARCHAR(255), mean VARCHAR(255))
What is the total number of Psychological Dependence, when Pleasure is "2.3", and when Mean is less than 1.9300000000000002?
    
SQL: SELECT COUNT(psychological_dependence) FROM table_name_91 WHERE pleasure = 2.3 AND mean < 1.9300000000000002