what is the difference in years between the first ship put into service and the last?
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col : ship name | in service | project number | type | class | comments row 1 : lenin | 1959 | 92m | icebreaker | — | decommissioned 1989. museum ship. row 2 : arktika | 1975 | 1052-1 | icebreaker | arktika | not operational. row 3 : sibir | 1977 | 1052-2 | icebreaker | arktika | defueled and not operational since 1993. row 4 : rossiya | 1985 | 10521-1 | icebreaker | arktika |  row 5 : sevmorput | 1988 | 10081 | container ship | — | has ice-breaking bow row 6 : taymyr | 1989 | 10580-1 | river icebreaker | taymyr |  row 7 : sovetskiy soyuz | 1990 | 10521-2 | icebreaker | arktika |  row 8 : vaygach | 1990 | 10580-2 | river icebreaker | taymyr |  row 9 : yamal | 1993 | 10521-3 | icebreaker | arktika |  row 10 : 50 let pobedy | 2007 | 10521 | icebreaker | arktika | built as ural, completed in 2007.
what is the difference in years between the first ship put into service and the last?
Ship Name In Service Project Number Type Class Comments
Lenin 1959 92M Icebreaker — Decommissioned 1989. Museum ship.
Arktika 1975 1052-1 Icebreaker Arktika Not operational.
Sibir 1977 1052-2 Icebreaker Arktika Defueled and not operational since 1993.
Rossiya 1985 10521-1 Icebreaker Arktika
Sevmorput 1988 10081 Container ship — Has ice-breaking bow
Taymyr 1989 10580-1 River icebreaker Taymyr
Sovetskiy Soyuz 1990 10521-2 Icebreaker Arktika
Vaygach 1990 10580-2 River icebreaker Taymyr
Yamal 1993 10521-3 Icebreaker Arktika
50 Let Pobedy 2007 10521 Icebreaker Arktika Built as Ural, completed in 2007.
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