时间	贵州	湖南	重庆	广西
2008-05-19	22700	22800	22800	22800
2008-05-16	22700	22700	22700	22700
2008-05-15	22900	22900	22900	22900
2008-05-14	22900	22900	22900	23000
2008-05-13	23300	23400	23400	23400
2008-05-12	23400	23500	23400	23500
2008-05-09	23600	23700	23600	23600
2008-05-08	23700	23800	23700	23700
2008-05-07	23200	23300	23200	23200
2008-05-06	23100	23200	23100	23100
2008-05-05	23000	23100	23000	22900
2008-05-04	23000	23100	23000	22900