how many series has nash won against tim duncan

Steve Nash won 19 times versus Tim Duncan in his career.

Interpreted as:

How many series has nash won in the regular season against Tim Duncan?

	NAME	DATE	W	TM		OPP	MIN	PTS	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Steve Nash S. Nash	1/9/1998	1	PHX	vs	SAS	27	16	2	3	1	0	6	12	50.0	1	2	50.0	3	3	100.0	60.1	0	2	1	0	+16
2	Steve Nash S. Nash	2/14/1998	1	PHX	@	SAS	30	6	5	5	1	0	2	5	40.0	2	3	66.7	0	0		60.0	2	3	1	2	+9
3	Steve Nash S. Nash	3/22/1998	0	PHX	@	SAS	9	0	0	0	0	0	0	1	0.0	0	0		0	0		0.0	0	0	0	1	-1
4	Steve Nash S. Nash	3/4/1999	0	DAL	vs	SAS	23	4	3	1	0	0	2	5	40.0	0	0		0	0		40.0	0	3	2	1	-20
5	Steve Nash S. Nash	3/27/1999	0	DAL	@	SAS	35	3	4	5	1	0	1	4	25.0	1	2	50.0	0	0		37.5	0	4	1	5	-11
6	Steve Nash S. Nash	4/13/1999	1	DAL	vs	SAS	42	8	5	12	2	0	3	10	30.0	1	3	33.3	1	2	50.0	36.8	1	4	5	1	+18
7	Steve Nash S. Nash	3/16/2000	1	DAL	@	SAS	41	10	0	11	1	0	3	3	100.0	2	2	100.0	2	2	100.0	128.9	0	0	1	3	+25
8	Steve Nash S. Nash	3/21/2000	1	DAL	vs	SAS	41	9	2	4	1	0	4	9	44.4	1	3	33.3	0	0		50.0	1	1	1	3	+7
9	Steve Nash S. Nash	11/10/2000	1	DAL	vs	SAS	39	11	7	7	2	0	3	8	37.5	1	4	25.0	4	4	100.0	56.4	4	3	4	3	+8
10	Steve Nash S. Nash	2/24/2001	0	DAL	vs	SAS	42	29	4	10	1	0	11	16	68.8	2	5	40.0	5	5	100.0	79.7	3	1	3	4	-2
11	Steve Nash S. Nash	4/10/2001	0	DAL	@	SAS	28	2	4	5	2	0	1	6	16.7	0	3	0.0	0	0		16.7	0	4	4	1	-14
12	Steve Nash S. Nash	12/26/2001	1	DAL	@	SAS	40	27	4	5	0	0	10	21	47.6	2	3	66.7	5	7	71.4	56.1	1	3	3	4	+1
13	Steve Nash S. Nash	1/5/2002	0	DAL	vs	SAS	40	17	4	6	1	0	8	19	42.1	0	1	0.0	1	2	50.0	42.8	1	3	2	5	-9
14	Steve Nash S. Nash	3/21/2002	0	DAL	vs	SAS	45	28	1	7	1	0	12	19	63.2	3	6	50.0	1	1	100.0	72.0	0	1	3	1	-1
15	Steve Nash S. Nash	4/6/2002	0	DAL	@	SAS	18	0	1	2	0	0	0	4	0.0	0	2	0.0	0	0		0.0	0	1	2	1	-12
16	Steve Nash S. Nash	12/11/2002	0	DAL	@	SAS	40	21	4	10	3	0	9	19	47.4	2	5	40.0	1	1	100.0	54.0	0	4	2	5	-15
17	Steve Nash S. Nash	2/20/2003	1	DAL	vs	SAS	42	29	2	10	2	0	12	22	54.5	1	3	33.3	4	5	80.0	59.9	0	2	3	1	+19
18	Steve Nash S. Nash	3/20/2003	0	DAL	vs	SAS	44	18	1	7	1	0	7	16	43.8	2	4	50.0	2	3	66.7	52.0	0	1	2	2	+6
19	Steve Nash S. Nash	11/20/2003	1	DAL	vs	SAS	35	12	8	7	1	0	3	9	33.3	1	2	50.0	5	6	83.3	51.5	2	6	3	1	-3
20	Steve Nash S. Nash	2/26/2004	1	DAL	vs	SAS	31	15	3	9	0	0	4	7	57.1	1	2	50.0	6	6	100.0	77.8	0	3	6	2	+18
21	Steve Nash S. Nash	12/28/2004	0	PHX	@	SAS	30	12	3	4	1	0	4	14	28.6	1	1	100.0	3	3	100.0	39.2	0	3	3	4	-26
22	Steve Nash S. Nash	1/21/2005	0	PHX	vs	SAS	45	16	2	13	1	0	6	13	46.2	2	3	66.7	2	2	100.0	57.6	0	2	7	2	-4
23	Steve Nash S. Nash	11/19/2005	0	PHX	@	SAS	39	14	8	10	0	0	5	14	35.7	0	3	0.0	4	4	100.0	44.4	2	6	6	2	-8
24	Steve Nash S. Nash	1/7/2006	1	PHX	vs	SAS	40	22	3	10	2	0	8	14	57.1	2	2	100.0	4	6	66.7	66.1	0	3	6	2	+11
25	Steve Nash S. Nash	3/17/2006	0	PHX	@	SAS	35	30	4	6	0	0	13	22	59.1	0	1	0.0	4	4	100.0	63.1	0	4	2	1	0
	Average		0.4				34.9	15.0	3.4	8.3	0.8	0.1	5.9	12.5	47.3	1.0	2.5	41.6	2.2	2.5	88.8	55.4	0.6	2.8	3.1	1.9	1.2
	Total		19				1,607	692	156	380	36	3	271	573	47.3	47	113	41.6	103	116	88.8	55.4	26	130	144	88	+53