ATR's order figures show that the regional manufacturer sold the same number of -500s as -600s last year.
It booked 18 ATR 72-500s and two ATR 42-500s as well as 18 ATR 72-600s and two ATR 42-600s, a total of 40 aircraft.
ATR also announced 17 options last year compared with 14 in 2008.
Its backlog at the end 2009 stood at 136 aircraft, says ATR, which represents more than two years' production at current rates.
This backlog comprises five ATR 42-600s, 54 ATR 72-600s, four ATR 42-500s and 73 ATR 72-500s.
The airframer disclosed the figures at an event in Paris today.
Chief executive Stephane Mayer says 2009 was a difficult year. "Backlog management was challenging and it demanded more effort than before," he adds.
But ATR product sales, he says, represented a 70% market share in 2009. The manufacturer delivered 54 aircraft last year compared with 55 in 2008.