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Retirees got a 2% raise in their Social Security for 2018, which was the highest increase in six years. They got no raise at all in 2016.

Still, 2% doesn't sound like much. Because it isn't, especially when prices for so many things older people buy are going up much more quickly.

The nonpartisan Senior Citizens League says these 10 retiree costs are going up the fastest. The percentages are the changes in price from January 2017 to January 2018.

9. (tie) Propane gas

A large propane tank against a red brick wall
Tom Gowanlock / Shutterstock

Up 9%

The rising cost of propane for heating has been burning up retirees' budgets.

Back in 2000, a gallon of propane gas cost $1.01. By January of last year, elderly homeowners were paying $2.39 a gallon.

In January 2018, the average cost per gallon was up to $2.60.

Experts recommend that households stock up on propane during the summer, when prices are lower. The cost can shoot higher during a frigid winter.

9. (tie) Car insurance

Senior woman driving a car
Photobac / Shutterstock

Up 9%

As Americans live longer, there are more older drivers on the road. The U.S. has over 40 million licensed drivers who are 65 or older, 50% more than in 1999, according to the Centers for Disease Control and Prevention.

Senior motorists sure wish they could put the brakes on their car insurance premiums. In the last year, those insurance rates have risen more than four times faster than inflation.

But many retirees may not realize they have fairly easy ways to cut the cost of coverage.

Several of the auto top insurers offer senior discounts based on age, or on whether the older motorist has completed a defensive driving course.

8. Medical expenses

American doctor talking to senior man in surgery
Monkey Business Images / Shutterstock

Up 10%

The health care expenses Medicare doesn't cover — including deductibles, some medical equipment, and dental and vision care — can put a big bite on retirement savings.

Those out-of-pocket costs have taken a big jump over the past year, from an average $12,125 per year to a painful $13,304 in 2018.

It's a situation that's likely to keep getting worse.

By 2030 those expenses could be equal to half the Social Security benefits seniors receive, the Kaiser Family Foundation says.

7. Eggs

Carton of twelve brown free range hen laid eggs.
Vicki Vale / Shutterstock

Up 11%

Eggs are a great source of protein and help fight the muscle loss that can occur with aging.

But older Americans who want to enjoy an egg or two at breakfast have been finding they have to shell out considerably more.

The average cost of a dozen eggs has gone up from $1.60 last year to $1.77 in 2018.

That's not the kind of price increase that goes over easy.

6. Oranges

Senior man choosing fruit to buy at supermarket
Goksi / Shutterstock

Up 12%

We're all supposed to eat plenty of fruits and veggies, but seniors have extra reasons to fill up on oranges and orange juice.

Studies indicate they help keep older brains sharp and fight hypertension.

But rising prices for oranges might just send blood pressure soaring.

Retirees paid $1.19 a pound for oranges in 2017. This year, the citrus is averaging $1.33 per pound.

5. Gasoline

Senior male hands inserting fuel nozzle in car for gasoline fueling
Kekyalyaynen / Shutterstock

Up 13%

This summer's gas prices are the highest in four years, thanks to higher demand for fuel and cutbacks in oil production. Gasoline taxes are part of the equation, too.

Retirees who were paying an average $2.41 a gallon to fill up their vehicles last year were handing over $2.72 per gallon in January 2018, The Senior Citizens League says.

But in January, things were just getting started. By early June, the national average price of gas had risen to $2.91, according to auto club AAA.

That's nearly 21% higher than in early 2017.

4. Tomatoes

Senior woman choosing her tomatoes in supermarket
wavebreakmedia / Shutterstock

Up 14%

Tomatoes are rich in lycopene, an antioxidant that's good for maintaining brain health and protecting against prostate cancer. It may even have benefits for patients with Parkinson's disease.

And here's another good reason for seniors to buy lots of tomatoes: They contain a lot of water, so they can help prevent dehydration.

About the only downside for older consumers is the rapidly rising prices for tomatoes.

Supermarkets are charging an average $2.34 a pound this year, compared to just $2.05 in 2017.

2. (tie) Potatoes

Senior woman holding potatoes at the grocery shop
wavebreakmedia / Shutterstock

Up 16%

Who doesn't love potatoes? They're delicious whether you mash them, bake them, boil them, make french fries or breakfast hash browns out of them, or include them in stews.

But here's what's not to love, as far as seniors are concerned: Taters have been seeing hefty price increases!

In 2017, a 10-pound bag of spuds cost $5.14, on average.

This year, 10 pounds of tubers will set you back $5.98.

2. (tie) Medigap supplements

Medical background with blue pills and blue capsules
ImageFlow / Shutterstock

Up 16%

Know what's rising even faster than out-of-pocket health care costs for retirees on Medicare?

Here's the answer: premiums for the special private insurance seniors buy to cover those expenses.

This year, older Americans are paying an average of $306.64 a month for a policy called a Medigap supplement.

That's up from $264.45 per month in 2017.

1. Home heating oil

Worried Senior Man With Bill Turning Down Heating Thermostat
SpeedKingz / Shutterstock

Up 22%

Seniors who can't afford to retire to the Sun Belt or be seasonal snowbirds have been paying more and more to keep warm — and not just with propane.

Price increases for home heating oil are the worst that older Americans have had to deal with in 2017, The Senior Citizens League says.

If you thought the 9% increase in propane prices was bad, just look at what's been happening with heating oil.

The price has gushed to an average $3.22 per gallon this year, from $2.63 early in 2017.

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