| Kind | Value | annotation | ||
| enumeration | 1_basal quarter | |||
| enumeration | 2_basal half | |||
| enumeration | 3_basal three quarters | |||
| enumeration | 4_middle half | |||
| enumeration | 5_distal three quarters | |||
| enumeration | 6_distal half | |||
| enumeration | 7_distal quarter | |||
| enumeration | 8_throughout |