[
    {
        "year": "2021",
        "grade": "職員",
        "number": "496"
    },
    {
        "year": "2021",
        "grade": "駐警",
        "number": "4"
    },
    {
        "year": "2021",
        "grade": "工友",
        "number": "18"
    },
    {
        "year": "2021",
        "grade": "技工",
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    },
    {
        "year": "2021",
        "grade": "駕駛",
        "number": "8"
    },
    {
        "year": "2021",
        "grade": "聘用",
        "number": "117"
    },
    {
        "year": "2021",
        "grade": "特約",
        "number": "198"
    },
    {
        "year": "2021",
        "grade": "臨時工",
        "number": "22"
    },
    {
        "year": "2022",
        "grade": "職員",
        "number": "515"
    },
    {
        "year": "2022",
        "grade": "駐警",
        "number": "4"
    },
    {
        "year": "2022",
        "grade": "工友",
        "number": "18"
    },
    {
        "year": "2022",
        "grade": "技工",
        "number": "18"
    },
    {
        "year": "2022",
        "grade": "駕駛",
        "number": "7"
    },
    {
        "year": "2022",
        "grade": "聘用",
        "number": "106"
    },
    {
        "year": "2022",
        "grade": "特約",
        "number": "207"
    },
    {
        "year": "2022",
        "grade": "臨時工",
        "number": "22"
    },
    {
        "year": "2020",
        "grade": "臨時工",
        "number": "22"
    },
    {
        "year": "2020",
        "grade": "特約",
        "number": "216"
    },
    {
        "year": "2020",
        "grade": "聘用",
        "number": "127"
    },
    {
        "year": "2020",
        "grade": "駕駛",
        "number": "10"
    },
    {
        "year": "2020",
        "grade": "技工",
        "number": "24"
    },
    {
        "year": "2020",
        "grade": "工友",
        "number": "19"
    },
    {
        "year": "2020",
        "grade": "駐警",
        "number": "4"
    },
    {
        "year": "2020",
        "grade": "職員",
        "number": "527"
    }
]