10 0 SHIP IN OPEN WATER WITH FLOATING ICE IN SIGHT
21 1 SHIP IN EASILY PENETRABLE ICE; CONDITIONS IMPROVING
32 2 SHIP IN EASILY PENETRABLE ICE; CONDITIONS NOT CHANGING
43 3 SHIP IN EASILY PENETRABLE ICE; CONDITIONS WORSENING
54 4 SHIP IN ICE DIFFICULT TO PENETRATE; CONDITIONS IMPROVING
65 5 SHIP IN ICE DIFFICULT TO PENETRATE; CONDITIONS NOT CHANGING
76 6 SHIP IN ICE DIFFICULT TO PENETRATE AND CONDITIONS WORSENING."    ICE FORMING AND FLOES FREEZING TOGETHAR
87 7 SHIP IN ICE DIFFICULT TO PENETRATE AND CONDITIONS WORSENING."    ICE UNDER SLIGHT PRESSURE
98 8 SHIP IN ICE DIFFICULT TO PENETRATE AND CONDITIONS WORSENING."    ICE UNDER MODERATE OR SEVERE PRESSURE
109 9 SHIP IN ICE DIFFICULT TO PENETRATE AND CONDITIONS WORSENING."     SHIP BESET.
1130 30 UNABLE TO REPORT, BECAUSE OF DARKNESS OR LACK OF VISIBILITY
1231 31 MISSING VALUE
13