"rolling average" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "1983, Code of Federal Regulations, Housing and Urban Development, 24",
          "text": "… so that a 36-month rolling average utility consumption per unit per month under paragraph (c)(1) of this section can be determined."
        },
        {
          "ref": "2006, Code of Federal Regulations, Title 40, Protection of Environment",
          "text": "(f) You must demonstrate continuous compliance on a 12-month rolling average basis determined at the end of every month (12 times per year) according to paragraphs (f)(l) and (2)."
        },
        {
          "ref": "2011, Woods Bowman, Finance Fundamentals for Nonprofits",
          "text": "The simplest spending formula applies a constant spending rate to a moving (or rolling) average of the market value of the endowment over several prior years."
        },
        {
          "ref": "2014, OECD Economic Surveys: Norway 2014",
          "text": "10-year rolling average"
        }
      ],
      "glosses": [
        "A moving average."
      ],
      "id": "en-rolling_average-en-noun-85H7kR5Z",
      "links": [
        [
          "moving average",
          "moving average"
        ]
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  "word": "rolling average"
}

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "1983, Code of Federal Regulations, Housing and Urban Development, 24",
          "text": "… so that a 36-month rolling average utility consumption per unit per month under paragraph (c)(1) of this section can be determined."
        },
        {
          "ref": "2006, Code of Federal Regulations, Title 40, Protection of Environment",
          "text": "(f) You must demonstrate continuous compliance on a 12-month rolling average basis determined at the end of every month (12 times per year) according to paragraphs (f)(l) and (2)."
        },
        {
          "ref": "2011, Woods Bowman, Finance Fundamentals for Nonprofits",
          "text": "The simplest spending formula applies a constant spending rate to a moving (or rolling) average of the market value of the endowment over several prior years."
        },
        {
          "ref": "2014, OECD Economic Surveys: Norway 2014",
          "text": "10-year rolling average"
        }
      ],
      "glosses": [
        "A moving average."
      ],
      "links": [
        [
          "moving average",
          "moving average"
        ]
      ]
    }
  ],
  "word": "rolling average"
}