报一个WAC H1B RFE approval timeline

OPT一月初过期，在国内等h1b approval，总算在月底新年之前等到啦！组里有个同事和我一模一样的情况，最近提交的基本都两三星期有回复的。
WAC181515****:
Received April 25
RFE Oct 19
RFE received Jan 14
RFE approved Jan 28