February saw the most accidents. While last year the second month of the year saw eight people die on the roads, this year 26 lives were taken.
A further breakdown of the numbers reveals 23 pedestrians killed against nine through the same period last year, in addition to 83 fatalities while driving compared to last year's 75, and 21 motorcyclists dead against 13 for the first half of 2010.
The Transport Administration's Director General Gunnar Malm could not draw conclusions or definitive answers as to why traffic fatalities are on the rise.
“I think it is actually purely random factors, and if we look at the average in recent years, it is actually a reduction,” he told the TT news agency.
Malm pointed out the decrease from five years ago, where the year's midpoint hovered just above 170 traffic fatalities. He said February 2010, with only eight deaths, stands out.
“It was an extreme month. We had severe winter conditions which made people cautious and perhaps even keep the car parked. February last year was actually tougher than this year.”
Last year 266 people in Sweden in total were killed in traffic, against 358 the year before.
But in 2010, traffic statistics began to exclude fatalities caused by suicide, which on average accounts for about 30 deaths a year.
The new quantifying method has not yet been administered for this year, which Malm said will reduce the numbers.
Malm also emphasized that looking at individual semi-annual or even monthly statistics can affect the numbers and create the illusion of a rising trend.
He said last year was perhaps "a good one.”
“I believe that chance played into our favour quite significantly during the year, and it is important to see the longer trend,” he explained.
During the first five months of 2011, traffic volume increased by 2.1 percent in the national road network, with 1.9 percent accounting for passenger cars and 3.5 percent for trucks.
“We know that when traffic increases so does the accident propensity. There's definitely a connection,” Malm told TT.
He would not yet talk about reasons why the numbers look so grim for certain types of road users or what could possibly be done to reduce fatal traffic incidents.
“We are analyzing this, they are very recent figures,” Malm said.