Radio Button icon

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 72 72" width="24" height="24"><g stroke-miterlimit="10" stroke-width="2"><circle cx="36" cy="36" r="22" fill="#3F3F3F"/><circle cx="36" cy="36" r="12.756" fill="#9B9B9A"/></g><g fill="none" stroke="#000" stroke-miterlimit="10" stroke-width="2"><circle cx="36" cy="36" r="22"/><circle cx="36" cy="36" r="12.756"/></g></svg>