league average usage rate by position year by yea

Point guards had a usage percentage of 18.6 in 1977-78.

	POSITION	USG%	SEASON	GP	MPG	PPG	RPG	APG	SPG	BPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	TS%	OREB	DREB	TPG	MIN	PTS	REB	AST	STL	BLK	TOV	PF
1	Point Guard	18.6	1977-78	3,227	24.8	9.8	2.4	4.3	1.4	0.2	3.9	8.7	45.3				1.9	2.5	77.0	50.0	0.7	1.8	2.2	80,109	31,582	7,901	13,952	4,363	540	7,221	7,370
2	Shooting Guard	22.5	1977-78	3,809	24.8	12.7	2.5	2.9	1.1	0.3	5.2	11.1	46.6				2.4	3.0	79.7	51.2	0.9	1.7	2.0	94,331	48,443	9,642	10,952	4,093	1,041	7,728	8,523
3	Small Forward	20.4	1977-78	3,780	24.0	11.2	4.7	2.1	0.9	0.4	4.5	9.6	47.0				2.2	2.9	76.9	51.8	1.6	3.1	1.8	90,595	42,492	17,649	7,932	3,562	1,324	6,921	9,203
4	Power Forward	18.7	1977-78	3,548	23.9	9.9	6.5	1.6	0.8	0.6	3.9	8.5	46.5				2.0	2.8	71.5	50.9	2.1	4.4	1.9	84,805	35,146	22,944	5,674	2,853	2,295	6,655	10,101
5	Center	19.2	1977-78	3,373	25.6	11.3	8.0	2.0	0.7	1.2	4.5	9.1	49.0				2.3	3.3	71.0	53.3	2.4	5.6	2.1	86,320	37,999	26,848	6,677	2,453	4,055	7,250	10,192
6	Point Guard	19.4	1978-79	3,245	26.0	11.1	2.2	4.6	1.3	0.2	4.4	9.4	46.9				2.3	2.9	78.5	51.9	0.7	1.5	2.3	84,408	36,072	7,152	15,026	4,316	594	7,376	7,722
7	Shooting Guard	22.4	1978-79	3,764	23.6	12.2	2.4	2.7	1.0	0.3	5.0	10.6	47.5				2.2	2.7	81.0	52.0	0.9	1.5	1.9	88,929	45,890	9,146	10,186	3,674	995	7,075	8,075
8	Small Forward	20.4	1978-79	3,923	23.9	11.3	4.6	2.3	0.9	0.4	4.6	9.4	48.9				2.1	2.8	75.3	53.2	1.5	3.0	1.9	93,648	44,340	17,866	8,988	3,685	1,493	7,491	9,610
9	Power Forward	18.9	1978-79	3,488	24.1	10.6	6.3	1.6	0.8	0.8	4.2	8.6	49.4				2.1	3.0	69.8	53.4	2.1	4.2	1.9	84,027	36,815	22,013	5,554	2,624	2,620	6,488	10,140
10	Center	18.4	1978-79	3,368	24.9	10.7	7.5	2.0	0.6	1.2	4.3	8.5	50.5				2.1	2.9	71.9	54.6	2.3	5.2	2.0	83,948	35,939	25,387	6,712	2,187	3,971	6,780	10,132
11	Point Guard	18.2	1979-80	3,302	24.4	9.6	2.3	4.3	1.3	0.2	3.8	8.2	46.1	0.1	0.4	27.0	2.0	2.5	80.4	52.1	0.7	1.6	1.9	80,694	31,839	7,517	14,102	4,168	534	6,343	6,944
12	Shooting Guard	22.6	1979-80	3,761	24.5	12.6	2.6	3.0	1.1	0.3	5.0	10.7	47.1	0.2	0.6	30.9	2.3	2.9	79.7	52.5	0.9	1.6	2.0	91,991	47,228	9,699	11,230	4,027	998	7,347	7,861
13	Small Forward	21.7	1979-80	3,480	25.8	12.9	4.9	2.3	1.1	0.5	5.3	10.8	48.6	0.1	0.3	27.2	2.3	3.0	78.6	53.3	1.7	3.2	2.0	89,769	45,003	16,998	8,103	3,672	1,830	6,798	8,873
14	Power Forward	19.1	1979-80	3,741	23.3	10.0	5.9	1.6	0.7	0.7	4.0	8.2	48.6	0.0	0.1	21.1	2.1	2.9	71.5	53.1	2.0	3.9	1.8	87,255	37,458	22,049	6,138	2,749	2,487	6,766	10,268
15	Center	17.8	1979-80	3,413	25.4	10.5	7.3	2.0	0.7	1.1	4.2	8.3	50.5	0.0	0.0	13.1	2.1	2.9	72.5	54.8	2.3	5.0	1.9	86,551	35,711	24,802	6,994	2,377	3,712	6,342	10,006
16	Point Guard	18.6	1980-81	3,516	24.1	9.5	2.2	4.5	1.2	0.2	3.7	8.0	46.9	0.1	0.3	24.2	1.9	2.5	78.9	52.5	0.6	1.5	2.1	84,842	33,403	7,579	15,741	4,219	594	7,268	7,909
17	Shooting Guard	22.1	1980-81	3,771	24.6	12.3	2.5	2.8	1.1	0.2	4.9	10.3	47.6	0.1	0.5	27.2	2.3	3.0	79.0	52.9	0.9	1.6	1.9	92,660	46,252	9,477	10,679	4,048	931	7,035	8,140
18	Small Forward	21.8	1980-81	3,620	25.6	12.8	4.7	2.3	1.0	0.4	5.2	10.6	48.9	0.0	0.2	23.1	2.5	3.2	76.6	53.5	1.7	3.0	1.9	92,829	46,429	16,877	8,271	3,457	1,598	6,782	8,848
19	Power Forward	18.6	1980-81	3,791	23.4	9.6	5.8	1.7	0.7	0.7	3.8	7.8	48.8	0.0	0.1	12.7	2.0	2.9	69.9	53.1	2.0	3.8	1.7	88,564	36,537	22,011	6,370	2,841	2,739	6,572	10,914
20	Center	18.6	1980-81	3,915	24.6	10.5	6.7	1.8	0.6	1.1	4.2	8.2	50.7	0.0	0.0	17.5	2.2	3.1	71.9	55.2	2.1	4.6	1.8	96,445	41,265	26,066	6,973	2,399	4,174	7,146	11,454
21	Point Guard	18.5	1981-82	3,094	25.4	10.0	2.4	5.1	1.3	0.2	4.0	8.5	47.1	0.1	0.5	26.7	1.8	2.4	76.3	52.1	0.6	1.7	1.9	78,613	30,838	7,381	15,743	4,106	490	6,001	7,133
22	Shooting Guard	22.3	1981-82	4,395	23.3	11.7	2.5	2.7	0.9	0.2	4.7	9.8	47.5	0.1	0.4	27.5	2.2	2.8	78.2	52.6	0.9	1.6	1.7	102,341	51,274	10,890	12,047	3,977	983	7,318	9,802
23	Small Forward	20.8	1981-82	4,135	23.8	11.5	4.4	2.1	0.8	0.4	4.6	9.2	50.3	0.0	0.2	25.7	2.3	3.0	75.2	54.9	1.6	2.8	1.7	98,531	47,625	18,085	8,602	3,383	1,655	6,964	9,948
24	Power Forward	18.6	1981-82	4,218	21.8	9.0	5.4	1.4	0.6	0.7	3.6	7.2	49.5	0.0	0.0	14.6	1.8	2.6	70.2	53.7	1.8	3.6	1.6	92,095	37,985	22,959	5,900	2,705	2,846	6,581	12,045
25	Center	19.0	1981-82	3,443	24.4	10.8	6.6	1.5	0.6	1.2	4.3	8.3	51.6	0.0	0.0	19.4	2.2	3.1	72.8	56.0	2.0	4.6	1.8	84,110	37,054	22,672	5,146	1,936	4,156	6,044	10,424