According to a recent report:

• 10.6% of adults with non-group insurance had zero deductible in 2014, up from 3.6% in 2013
•  For adults with non-group insurance, high deductibles of $1,500 or more per person were reported by 42.8% of those insured in the marketplace,
  compared to 58.3% insured outside the marketplace
•  For adults with non-group insurance, very high deductibles of $3,000 or more per person were reported by 22.5% of those insured in the
  marketplace, compared to 37.5% insured outside the marketplace
•  29.8% of adults with deductibles of $1,500 or more per person, who were insured for a full year, went without needed medical care
  because they could not afford it
• 19.6% of adults with deductibles under $1,500 per person went without needed medical care because they could not afford it

Source: "Non-Group Health Insurance: Many Insured Americans with High Out-of-Pocket Costs Forgo Needed Health Care," Families USA, May 2015, http://familiesusa.org/sites/default/files/product_documents/ACA_HRMSurvey%20Urban-Report_final_web.pdf