Added latest fields: idle_conn_cur, safe_conn_cur, used_conn_cur, need_conn_est
92. rtime_max [..BS]: the maximum observed response time in ms (0 for TCP)
93. ttime_max [..BS]: the maximum observed total session time in ms
94. eint [LFBS]: cumulative number of internal errors
+ 95. idle_conn_cur [...S]: current number of unsafe idle connections
+ 96. safe_conn_cur [...S]: current number of safe idle connections
+ 97. used_conn_cur [...S]: current number of connections in use
+ 98. need_conn_est [...S]: estimated needed number of connections
For all other statistics domains, the presence or the order of the fields are
not guaranteed. In this case, the header line should always be used to parse