what percentage of games did tim duncan play power forward

Tim Duncan games

Interpreted as:

What percentage of regular-season games did Tim Duncan play power forward in his career?

	NAME	DATE	TM		OPP	MIN	PTS	REB	AST	STL	BLK	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TOV	PF	+/-
1	Tim Duncan T. Duncan	4/17/2006	SAS	vs	UTA	22	16	5	1	1	1	7	13	53.8	0	0		2	3	66.7	55.9	3	2	0	1	0
2	Tim Duncan T. Duncan	4/16/2006	SAS	@	MIN	20	10	8	1	0	2	3	6	50.0	1	1	100.0	3	4	75.0	64.4	3	5	3	1	+21
3	Tim Duncan T. Duncan	4/13/2006	SAS	vs	ORL	38	31	13	6	2	2	12	19	63.2	0	0		7	10	70.0	66.2	1	12	5	3	-3
4	Tim Duncan T. Duncan	4/11/2006	SAS	vs	SEA	35	18	14	1	3	5	6	18	33.3	0	0		6	12	50.0	38.7	5	9	3	3	+20
5	Tim Duncan T. Duncan	4/9/2006	SAS	vs	MEM	38	23	12	5	2	3	8	14	57.1	0	0		7	12	58.3	59.6	3	9	4	3	+7
6	Tim Duncan T. Duncan	4/7/2006	SAS	vs	DAL	38	13	9	3	0	2	5	15	33.3	0	0		3	6	50.0	36.8	3	6	2	3	+2
7	Tim Duncan T. Duncan	4/5/2006	SAS	vs	SAC	31	11	6	1	2	3	3	9	33.3	0	0		5	6	83.3	47.3	2	4	3	3	-8
8	Tim Duncan T. Duncan	4/4/2006	SAS	@	UTA	35	11	13	3	0	5	3	10	30.0	0	0		5	8	62.5	40.7	3	10	1	1	-4
9	Tim Duncan T. Duncan	4/1/2006	SAS	vs	WAS	32	16	14	3	1	2	6	12	50.0	0	0		4	7	57.1	53.1	7	7	2	5	+15
10	Tim Duncan T. Duncan	3/30/2006	SAS	@	LAL	36	20	13	4	0	3	9	18	50.0	0	0		2	4	50.0	50.6	3	10	1	3	+3
11	Tim Duncan T. Duncan	3/28/2006	SAS	@	LAC	37	20	13	4	0	3	9	17	52.9	0	0		2	5	40.0	52.1	5	8	2	4	+15
12	Tim Duncan T. Duncan	3/26/2006	SAS	@	SEA	35	28	10	0	2	0	8	13	61.5	0	0		12	14	85.7	73.1	4	6	1	2	+6
13	Tim Duncan T. Duncan	3/24/2006	SAS	@	POR	29	6	7	6	1	2	3	7	42.9	0	0		0	2	0.0	38.1	1	6	4	4	+14
14	Tim Duncan T. Duncan	3/22/2006	SAS	@	DEN	39	22	6	0	1	1	8	18	44.4	0	0		6	14	42.9	45.5	3	3	2	1	-7
15	Tim Duncan T. Duncan	3/21/2006	SAS	vs	GSW	35	21	13	3	1	1	10	18	55.6	0	0		1	1	100.0	56.9	4	9	1	2	+9
16	Tim Duncan T. Duncan	3/18/2006	SAS	@	HOU	31	14	8	4	0	1	5	9	55.6	0	0		4	7	57.1	57.9	1	7	2	3	+12
17	Tim Duncan T. Duncan	3/17/2006	SAS	vs	PHX	36	20	13	7	1	1	9	17	52.9	0	0		2	7	28.6	49.8	9	4	4	3	+2
18	Tim Duncan T. Duncan	3/14/2006	SAS	vs	NOK	32	17	8	4	0	2	6	9	66.7	0	0		5	6	83.3	73.0	4	4	5	3	+3
19	Tim Duncan T. Duncan	3/12/2006	SAS	vs	HOU	39	20	10	4	1	0	9	20	45.0	0	0		2	3	66.7	46.9	4	6	5	1	+4
20	Tim Duncan T. Duncan	3/10/2006	SAS	vs	LAL	32	12	4	2	1	0	5	12	41.7	0	0		2	5	40.0	42.3	0	4	3	0	-16
21	Tim Duncan T. Duncan	3/9/2006	SAS	@	PHX	30	16	5	5	2	2	8	11	72.7	0	0		0	0		72.7	1	4	0	3	+24
22	Tim Duncan T. Duncan	3/7/2006	SAS	@	LAC	29	16	7	7	0	1	6	14	42.9	0	0		4	4	100.0	50.8	3	4	4	5	-10
23	Tim Duncan T. Duncan	3/6/2006	SAS	@	LAL	32	18	7	9	2	1	8	16	50.0	0	0		2	2	100.0	53.3	2	5	0	1	+28
24	Tim Duncan T. Duncan	3/4/2006	SAS	vs	POR	36	22	15	2	2	3	10	16	62.5	0	0		2	5	40.0	60.4	5	10	1	3	+21
25	Tim Duncan T. Duncan	3/2/2006	SAS	vs	DAL	38	15	6	2	0	2	4	11	36.4	0	0		7	10	70.0	48.7	1	5	2	3	+8