“ vip_front_onload_duration [24h]指定间隔”有3分，我想计算这3分的总和。
avg_over_time（vip_front_onload_duration {pageid =〜“ pay.xxx.com/pay.html”} [24h]）
结果是
{instance="xxx:7002",job="vip_monitor",pageid="pay.xxx.com/pay.html",quantile="0.5"} 2524.586342592599
{instance="xxx:7002",job="vip_monitor",pageid="pay.xxx.com/pay.html",quantile="0.9"} 11592.012384259262
{instance="xxx:7002",job="vip_monitor",pageid="pay.xxx.com/pay.html",quantile="0.99"} 77310.7171296294
此表达式Avg_over_time（vip_front_onload_duration {pageid =〜“ pay.xxx.com/pay.html”} [24h]）分别计算'quantine ='0.5 | 0.9 | 0.99''的平均值，我想获取这三个指标的总和。