@Monitor(name = "ResponseTimeMillis98Percentile", type = DataSourceType.INFORMATIONAL,
             description = "98th percentile in total time to handle a request, in milliseconds")
    public double getResponseTime98thPercentile() {
        return getResponseTimePercentile(Percent.NINETY_EIGHT);
    }
Gets the 98-th percentile in the total amount of time spent handling a request, in milliseconds.
ribbon-loadbalancer/src/main/java/com/netflix/loadbalancer/ServerStats.java