Notation	Name	Description	Status
1	Generally in the direction NE		stable
2	Generally in the direction E		stable
3	Generally in the direction SE		stable
4	Generally in the direction S		stable
5	Generally in the direction SW		stable
6	Generally in the direction W		stable
7	Generally in the direction NW		stable
8	Generally in the direction N		stable
9	Specific direction indeterminable		stable
15	Missing value		stable