What is the discount rate at which the following cash flows have a NPV of $$0?$ Answer in $\%,$ rounding to $2$ decimals.

Year $0$ cash flow $=-139,000$

Year $1$ cash flow $=37,000$

Year $2$ cash flow $=41,000$

Year $3$ cash flow $=43,000$

Year $4$ cash flow $=36,000$

Year $5$ cash flow $=42,000$

Year $6$ cash flow $=44,000$