Table 2.

Relative distribution (%) of the frequency of goals scored per 15-min period and 15-min period of extra time.

Interval (minutes)	1966	1970	1974	1978	1982	1986	1990	1994	1998	2002	2006	2010	2014	2018	χ2	Cramer’sV	p
0–15	18.0	12.6	13.4	11.8	11.0	13.6	7.0	15.6	14.0	16.1	15.6	9.7	10.5	11.8	81.4	0.094	0.082
16–30	12.4	14.7	17.5	9.8	15.1	13.6	11.3	14.2	11.7	13.0	16.3	15.9	15.8	10.1
31–45+	16.9	8.4	15.5	28.4	8.2	13.6	10.4	16.3	15.2	16.1	15.6	15.2	11.7	15.4
46–60	12.4	21.1	17.5	13.7	19.9	15.9	16.5	16.3	18.1	16.8	12.2	15.2	14.0	21.3
61–75	14.6	18.9	16.5	18.6	26.7	18.9	20.0	15.6	14.6	18.0	8.8	18.6	19.3	17.8
76–90+	23.6	16.8	19.6	15.7	17.1	20.5	30.4	19.9	25.7	18.0	29.3	24.1	24.0	21.9
Extra time
91–105+	1.1	3.2	0.0	1.0	2.1	1.5	0.9	1.4	0.0	1.2	0.7	0.7	1.8	0.6
106–120+Games	1.1	4.2	0.0	1.0	0.7	2.3	3.5	0.7	0.6	0.6	1.4	0.7	2.9	1.2
	32	32	38	38	52	52	52	52	64	64	64	64	64	64
GPM	2.78	2.97	2.55	2.68	2.81	2.54	2.21	2.71	2.67	2.52	2.3	2.27	2.67	2.64

Games – Number of games; GPM – Goals Per Match.