The average score for maths in Malta was 509, which is 13 points higher than when it last took part in the study in 2011. For science, the average score was 496, compared with 446 in the last assessment.
A first of its kind, the objective of this nation-wide survey was to bring forth the array of skills among the population of working age of Malta and Gozo.
Over the last 100 years the system of public schooling (including colleges and universities) has changed some but very little compared to the rest of society.
Computer programming has seen one of the biggest rises in the number of employees. An additional 274,000 people work in the field compared with when the last census took place in 2011.