The purchasing managers' index (PMI) for China's non-manufacturing sector came in at 41.6 in December 2022, down from 46.7 in November, the National Bureau of Statistics said Saturday.A reading above 50 indicates expansion, while a reading below it reflects contraction.The construction sector maintained expansion in December, with the sub-index for business activities reaching 54.4, 1 percentage point lower than the previous month.The service sector was weaker in December as COVID-19 and other factors weighed on market activities. The sub-index for business activities declined 5.7 percentage points from the previous month to 39.4.But sub-indexes measuring business activities in air transport, telecommunications, radio and television, satellite transmission services, and monetary and financial services, stood above 52 and remained in the expansion range.The sub-indexes for business activities in retail, road transport, accommodation and catering stood below 35.Demand in the non-manufacturing market also declined, with the sub-index for new orders dropping 3.2 percentage points from the previous month to 39.1.Saturday's data also revealed that the PMI for China's manufacturing sector came in at 47 in December -- down from 48 in November.The purchasing managers' index (PMI) for China's non-manufacturing sector came in at 41.6 in December 2022, down from 46.7 in November, the National Bureau of Statistics said Saturday.A reading above 50 indicates expansion, while a reading below it reflects contraction.The construction sector maintained expansion in December, with the sub-index for business activities reaching 54.4, 1 percentage point lower than the previous month.The service sector was weaker in December as COVID-19 and other factors weighed on market activities. The sub-index for business activities declined 5.7 percentage points from the previous month to 39.4.But sub-indexes measuring business activities in air transport, telecommunications, radio and television, satellite transmission services, and monetary and financial services, stood above 52 and remained in the expansion range.The sub-indexes for business activities in retail, road transport, accommodation and catering stood below 35.Demand in the non-manufacturing market also declined, with the sub-index for new orders dropping 3.2 percentage points from the previous month to 39.1.Saturday's data also revealed that the PMI for China's manufacturing sector came in at 47 in December -- down from 48 in November.