Table 4. The impact of climate change and human activities.

Year	Change of Runoff (m3/s)	Impacts of Human Activities/%	Impacts of Precipitation/%	Year	Change of Runoff (m3/s)	Impacts of Human Activities/%	Impacts of Precipitation/%
1968	130.91	151	-51	1978	-42.70	249	-149
1969	87.02	-55	155	1979	290.76	51	49
1970	58.41	10	90	1980	14.90	-384	484
1971	7.69	-300	400	2007	15.73	260	-160
1972	6.66	-809	909	2008	107.86	-9	109
1973	19.03	-118	218	2009	-41.28	-33	133
1974	-36.31	27	73	2010	9.42	-799	899
1975	-55.92	114	-14	2011	-21.99	-185	285
1976	62.70	-27	127	2012	-11.66	-89	189
1977	99.31	36	64	2013	-49.86	39	61