monthly statistics

For eery month prepare statistics for

• type of appointment (A, Bg, etc.)
• status (no show, cancel, etc)
• nomber of visit (first, follow up 1, etc)
• subject type (ontrol, patient)

assigned to @valentin.groues

created branch 52-monthly-statistics

mentioned in merge request !13 (merged)

mentioned in commit d571b4cc

closed via merge request !13 (merged)

closed via commit bec1de36

mentioned in commit bec1de36

removed assignee