Sam refuses to retire until his retirement account has a balance of at least $ $301,443.$ Sam refuses to make any more deposits in the account. The account currently has a balance of $$101,195$ and earns $6\%$ per year, compounded semiannually. How long does Sam have before he will retire?

You are computing number of years. Round your answer to one decimal place. For example, record $14\mathrm{.}294$ years as $14\mathrm{.}3.$

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