[
    {
        "id": "ctr",
        "value": "CTR"
    },
    {
        "id": "play_over_rate",
        "value": "View-through rate"
    },
    {
        "id": "high_spending_rate",
        "value": "Ad spend"
    },
    {
        "id": "high_spending_rate_change",
        "value": "Ad spend change"
    }
]