Notation	Name	Description	Status
0	No ice of land origin		stable
1	1-5 icebergs, no growlers or bergy bits		stable
2	6-10 icebergs, no growlers or bergy bits		stable
3	11-20 icebergs, no growlers or bergy bits		stable
4	Up to and including 10 growlers and bergy bits - no icebergs		stable
5	More than 10 growlers and bergy bits - no icebergs		stable
6	1-5 icebergs, with growlers and bergy bits		stable
7	6-10 icebergs, with growlers and bergy bits		stable
8	11-20 icebergs, with growlers and bergy bits		stable
9	More than 20 icebergs, with growlers and bergy bits - a major hazard to navigation		stable
14	Unable to report, because of darkness, lack of visibility or because only sea ice is visible		stable
15	Missing value		stable