A new study shows the dramatic impact of rising cost of health care on national familybudgets.

The study by the Commonwealth Fund found that the averageAmerican family spends 10.1 percent of its income just on health insurance premiums and deductibles, upfrom 6.5 percent a decade ago.

The average annual total premium for family coverage is now$17,322. For an individual plan, the average employee pays $1,255 a year in premiums.

The good news is the cost of coverage has actually slowed down alittle over the past five years. Between 2006 and 2011, the averageshare of family income taken up by health insurance grew by 2.4percent, while it has only risen 1.2 percent since.

While 20 states experienced average increases above 5 percentbetween 2006 and 2011, only eight have dealt with increases thatgreat over the past five years.

However, the study notes that health care costs continue toclimb faster than wages, which is why they continue to eat up abigger portion of family budgets.

The trends in health care costs vary significantly betweendifferent parts of the country. Thirty-three states and theDistrict of Columbia have seen slower growth in costs over the pastfive years, while the remaining 17 states have seen an accelerationin costs during that time.

In most instances, states that have seen higher cost growth inrecent years were the ones which had lower-than-average growth inthe first part of the past decade.

For instance, of the 13 states that saw the cost of coveragegrow by less than 4 percent between 2006 and 2011, 11 experienced arise in costs of more than 4 percent in the subsequent fiveyears.

Conversely, of the 20 states that saw prices increase by morethan 5 percent during the first five years, only four experiencedas great a rise in costs during the latter part of the decade.

Three states have experienced major growth in health care coststhroughout the entire decade: Alaska, Idaho and Kentucky.

Alaska has the highest average family premiums in the country,at just over $21,000, up from just over $12,198 in 2006. Arkansashas the cheapest family plans on average, at $14,218.