color code	brown	red	orange	yellow	green	blue	violet	gray	white	black	gold	silver	none
number	1	2	3	4	5	6	7	8	9	0	-1	-2	--
reliability (%)	±1	±2	--	--	±0.5	±0.25	±0.1	±0.05	--	--	±5	±10	±20

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