Structure

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 24 24"
>
    <linearGradient
        id="a"
        x1="15"
        x2="15"
        y1=".037"
        y2="23.899"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#a8e63c" />
        <stop offset="1" stop-color="#468158" />
    </linearGradient>
    <linearGradient
        id="b"
        x1="13.5"
        x2="13.5"
        y1=".037"
        y2="23.899"
        href="#a"
    />
    <linearGradient id="c" x1="12" x2="12" y1=".037" y2="23.899" href="#a" />
    <g>
        <path
            fill="url(#a)"
            d="M12 19a1 1 0 0 1 0-2 5 5 0 0 0 0-10 1 1 0 0 1 0-2 7 7 0 0 1 0 14z"
        />
        <path
            fill="url(#b)"
            d="M12 16a1 1 0 0 1 0-2 2 2 0 0 0 0-4 1 1 0 0 1 0-2 4 4 0 0 1 0 8z"
        />
        <g fill="url(#c)">
            <path
                d="M12 22a10 10 0 1 1 10-10 10.011 10.011 0 0 1-10 10zm0-18a8 8 0 1 0 8 8 8.009 8.009 0 0 0-8-8z"
            />
            <path d="M12 22a1 1 0 0 1-1-1V3a1 1 0 0 1 2 0v18a1 1 0 0 1-1 1z" />
        </g>
    </g>
</svg>