Psychological complaints

In the Mental Health Inventory (MHI) for adolescents above 12 and adults, the percentage of people aged 12 or older with a score below 60. The figures are related to the 'Mental Health Inventory 5' or  'MHI-5', an international standard for a specific assessment of mental health consisting of 5 questions. The MHI-5 is an abbreviated form of the Short Form 36 or SF-36, an extensive international standard for health assessment. Each question in the MHI-5 is related to how the respondent felt over the past 4 weeks. The questions were:
1. Did you feel very nervous?
2. Was your mood so low that nothing could cheer you up?
3.Did you feel calm and composed?
4. Did you feel depressed and gloomy?
5. Did you feel happy?
Each question offers the following 6 answer categories: all the time-most of the time-often-sometimes-seldom-never. The answers to the positively formulated questions in the MHI questionnaire (questions 3 and 5) were given the values 5, 4, 3, 2, 1 and 0 in sequence. The negatively formulated questions (questions  1, 2 and 4) were assigned the same values in reverse order. For each respondent, the sum scores were calculated which were multiplied by 4, so that the minimum sum score of a participant can be 0 (extremely poor mental health)and the maximum  score 100 (perfect mental health). A score of 60 or higher qualifies a person as in good mental health, lower than 60 as in poor mental health.