The accompanying data file shows the gross domestic product (GDP) for China from 1990 through 2018. Use the method of runs above and below the median with a significance level of 5% to test the null hypothesis of randomness against the alternative that there is a trend or cyclical pattern.

Year	GDP
1990	3.91
1991	9.29
1992	14.22
1993	13.87
1994	13.05
1995	10.95
1996	9.93
1997	9.23
1998	7.84
1999	7.67
2000	8.49
2001	8.34
2002	9.13
2003	10.04
2004	10.11
2005	11.40
2006	12.72
2007	14.23
2008	9.65
2009	9.40
2010	10.64
2011	9.55
2012	7.86
2013	7.77
2014	7.30
2015	6.91
2016	6.74
2017	6.76
2018	6.57