折线图显示自定义数据的问题echarts 配置项内容和展示

如图两条数据是两个不同时间周期获取到的结果，现在想在series中的data中添加自定义的标签 用于显示具体的日期 如1的日期为 2017-01-01,2016-12-01 ;2的日期为2017-01-02,2016-12-02 以此类推 在鼠标移动到数据中可以很直观的显示 大致效果如截图

      option = {
    "tooltip": {
        "trigger": "axis"
    },
    "legend": {
        "data": ["①提现", "②提现"]
    },
    "grid": {
        "left": "3%",
        "right": "3%",
        "bottom": "3%",
        "containLabel": "true"
    },
    "xAxis": {
        "type": "category",
        "boundaryGap": "false",
        "data": [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
    },
    "yAxis": {
        "type": "value",
        "axisLabel": {
            "formatter": "{value} 元"
        }
    },
    "series": [{
        "name": "①提现",
        "type": "line",
        "data": [67.00, 43.00, 0.00, 0.00, 2.00, 73.00, 100.00, 18.00, 0.00, 92.00, 7.00, 7.00, 15.00, 10.00, 116.00]
    }, {
        "name": "②提现",
        "type": "line",
        "data": [98.00, 0.00, 103.00, 159.00, 0.00, 62.00, 0.00, 0.00, 42.00, 47.00, 54.00, 21.00, 0.00, 0.00, 51.00]
    }]
};