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            1987,
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            1988,
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            1992,
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            1994,
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            1995,
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            1996,
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          [
            1997,
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            1998,
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            1999,
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            2000,
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            2001,
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            2002,
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            2003,
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            2004,
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            2005,
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            2006,
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            2007,
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            2008,
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            2016,
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            2017,
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            2018,
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            2021,
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            2022,
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            2024,
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            2025,
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            1982,
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            1983,
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            1984,
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            1987,
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            2022,
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    "method": "Calendar-day mean \u00b1 two sample standard deviations; missing records excluded",
    "units": "million km\u00b2"
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}