The Comparison of Grey System and the Verhulst Model for Rainfall and Water in Dam Prediction

Table 7

The search outcomes of “fuzzy mathematics.”

Time	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999
Number of papers	345	373	401	346	543	575	574	551	514	530
Time	2000	2001	2002	2003	2004	2005	2006	2006	2007	2008
Number of papers	605	583	598	714	720	799	908	1006	933	11618