How many times has jokic put up 20 in a half?

	NAME	HALF	DATE	TM		OPP	PTS	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF
1	Nikola Jokić N. Jokić	1H	10/28/2015	DEN	@	HOU	0	0	0	0	0	0	0		0	0		0	0			0	0	1	0
2	Nikola Jokić N. Jokić	1H	10/30/2015	DEN	vs	MIN	2	2	0	0	0	1	2	50.0	0	0		0	0		50.0	0	2	1	1
3	Nikola Jokić N. Jokić	1H	11/1/2015	DEN	@	OKC	2	2	0	0	0	1	3	33.3	0	0		0	0		33.3	2	0	1	0
4	Nikola Jokić N. Jokić	1H	11/5/2015	DEN	vs	UTA	2	1	0	0	0	1	4	25.0	0	0		0	0		25.0	1	0	1	0
5	Nikola Jokić N. Jokić	1H	11/6/2015	DEN	@	GSW	0	0	0	1	1	0	0		0	0		0	2	0.0	0.0	0	0	0	0
6	Nikola Jokić N. Jokić	1H	11/9/2015	DEN	vs	POR	6	1	0	1	0	1	1	100.0	0	0		4	4	100.0	108.7	0	1	1	1
7	Nikola Jokić N. Jokić	1H	11/11/2015	DEN	vs	MIL	6	3	3	1	0	3	4	75.0	0	0		0	0		75.0	2	1	0	0
8	Nikola Jokić N. Jokić	1H	11/13/2015	DEN	vs	HOU	3	5	0	0	0	1	3	33.3	0	1	0.0	1	2	50.0	38.7	2	3	1	2
9	Nikola Jokić N. Jokić	1H	11/14/2015	DEN	@	PHX	0	3	0	0	0	0	0		0	0		0	0			2	1	0	3
10	Nikola Jokić N. Jokić	1H	11/18/2015	DEN	@	SAS	12	7	0	1	0	5	8	62.5	0	0		2	2	100.0	67.6	5	2	0	2
11	Nikola Jokić N. Jokić	1H	11/20/2015	DEN	vs	PHX	2	2	0	0	0	1	5	20.0	0	1	0.0	0	0		20.0	2	0	0	2
12	Nikola Jokić N. Jokić	1H	11/22/2015	DEN	vs	GSW	2	5	2	0	1	0	3	0.0	0	0		2	2	100.0	25.8	2	3	1	0
13	Nikola Jokić N. Jokić	1H	11/24/2015	DEN	vs	LAC	4	3	2	0	0	2	6	33.3	0	1	0.0	0	0		33.3	1	2	0	2
14	Nikola Jokić N. Jokić	1H	11/27/2015	DEN	vs	SAS	4	1	0	0	0	2	3	66.7	0	0		0	0		66.7	1	0	1	2
15	Nikola Jokić N. Jokić	1H	11/28/2015	DEN	@	DAL	8	4	0	1	0	2	3	66.7	1	1	100.0	3	4	75.0	84.0	1	3	1	1
16	Nikola Jokić N. Jokić	1H	11/30/2015	DEN	@	MIL	8	3	2	0	2	4	5	80.0	0	1	0.0	0	0		80.0	0	3	0	1
17	Nikola Jokić N. Jokić	1H	12/2/2015	DEN	@	CHI	7	3	0	0	1	3	6	50.0	1	1	100.0	0	0		58.3	0	3	0	1
18	Nikola Jokić N. Jokić	1H	12/3/2015	DEN	@	TOR	6	4	0	0	0	3	4	75.0	0	0		0	0		75.0	1	3	0	0
19	Nikola Jokić N. Jokić	1H	12/8/2015	DEN	vs	ORL	2	1	1	0	0	1	2	50.0	0	0		0	0		50.0	0	1	0	1
20	Nikola Jokić N. Jokić	1H	12/11/2015	DEN	vs	MIN	10	3	1	1	0	1	4	25.0	0	0		8	8	100.0	66.5	2	1	1	2
21	Nikola Jokić N. Jokić	1H	12/14/2015	DEN	vs	HOU	5	2	1	1	0	2	2	100.0	0	0		1	1	100.0	102.5	0	2	1	1
22	Nikola Jokić N. Jokić	1H	12/15/2015	DEN	@	MIN	4	1	1	2	0	2	3	66.7	0	0		0	0		66.7	1	0	0	1
23	Nikola Jokić N. Jokić	1H	12/18/2015	DEN	@	UTA	4	6	0	1	0	0	1	0.0	0	0		4	4	100.0	72.5	2	4	2	2
24	Nikola Jokić N. Jokić	1H	12/20/2015	DEN	vs	NOP	6	1	2	0	1	3	4	75.0	0	1	0.0	0	0		75.0	0	1	0	1
25	Nikola Jokić N. Jokić	1H	12/22/2015	DEN	vs	LAL	8	5	3	0	0	2	3	66.7	0	0		4	4	100.0	84.0	4	1	2	2