Under Obama's new health care bill, how long can you go without insurance and not pay the uninsured penalty?

How long can one go without coverage without paying the penalty/tax for not having health insurance once that part of the bill takes effect in 2014?
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Those without coverage pay a tax penalty of the greater of $695 per year up to a maximum of three times that amount ($2,085) per family or 2.5% of household income. The penalty will be phased-in according to the following schedule: $95 in 2014, $325 in 2015, and $695 in 2016 for the flat fee or 1.0% of taxable income in 2014, 2.0% of taxable income in 2015, and 2.5% of taxable income in 2016. Exemptions will be granted for financial hardship, religious objections, American Indians, those without coverage for less than three months, undocumented immigrants, incarcerated individuals, those for whom the lowest cost plan option exceeds 8% of an individual's income, and those with incomes below the tax filing threshold (in 2009 the threshold for taxpayers under age 65 was $9,350 for singles and $18,700 for couples).
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