GratefulDB

Share of counted performances with each singer on lead vocals, by year
Year	Performances	Jerry Garcia	Bob Weir	Ron McKernan	Brent Mydland	Phil Lesh	Donna Jean Godchaux	Vince Welnick	Others
1965	4	25%	—	75%	—	—	—	—	—
1966	238	45%	32%	29%	—	11%	—	—	1%
1967	210	38%	27%	35%	—	11%	—	—	—
1968	548	44%	28%	21%	—	9%	—	—	—
1969	1,548	51%	28%	23%	—	6%	—	—	0%
1970	2,126	54%	34%	18%	—	2%	—	—	1%
1971	1,803	48%	46%	13%	—	0%	—	—	0%
1972	2,235	48%	48%	7%	—	1%	3%	—	0%
1973	1,859	48%	49%	—	—	2%	1%	—	0%
1974	1,047	49%	46%	—	—	0%	1%	—	—
1975	55	45%	35%	—	—	9%	2%	—	—
1976	940	45%	53%	—	—	0%	7%	—	—
1977	1,235	48%	50%	—	—	—	7%	—	—
1978	1,582	42%	50%	—	—	0%	6%	—	—
1979	1,598	44%	47%	—	4%	—	2%	—	—
1980	2,103	46%	46%	—	4%	—	—	—	0%
1981	1,878	43%	48%	—	3%	—	—	—	1%
1982	1,330	44%	47%	—	4%	—	—	—	0%
1983	1,357	46%	46%	—	3%	—	—	—	0%
1984	1,286	46%	44%	—	5%	0%	—	—	—
1985	1,405	45%	44%	—	5%	2%	—	—	—
1986	885	43%	44%	—	5%	3%	—	—	1%
1987	1,784	42%	42%	—	7%	2%	—	—	5%
1988	1,573	44%	43%	—	10%	2%	—	—	0%
1989	1,449	44%	41%	—	11%	2%	—	—	0%
1990	1,491	44%	43%	—	6%	3%	—	—	1%
1991	1,466	45%	43%	—	—	2%	—	0%	1%
1992	1,012	41%	43%	—	—	3%	—	4%	1%
1993	1,529	43%	40%	—	—	4%	—	3%	0%
1994	1,570	43%	40%	—	—	4%	—	4%	0%
1995	848	43%	39%	—	—	4%	—	4%	0%