从一致累计扩散指数分析中可以看出,1990年2月一致累计扩散指数达到最低点(-45.0)后,从3月初开始回升,到1991年底的20个月间一直呈上升趋势,1991年12月达到275.0。估计这一上升趋势将维持到今年第四季度。从滞后累计扩散指数分析,1990年3月滞后累计扩散指数达到最低点后,从4月开始缓慢回升,期间虽有起伏,但幅度不大。这也验证了第四次波动的峰还没出现。 It can be seen from the analysis of the Cumulative Cumulative Dispersal Index that after the consensus cumulative diffusion index reached the lowest point (-45.0) in February 1990, it started to rebound from early March and has been on an upward trend in the 20 months to the end of 1991. In 1991, Month reached 275.0. It is estimated that this upward trend will be maintained until the fourth quarter of this year. From the lag cumulative diffusion index analysis, in March 1990 after the lag cumulative diffusion index reached its lowest point, began to slowly rise from April, although the ups and downs during the period, but not much. This also verifies that the fourth peak has not yet appeared.