Duration	Year	Counts
Preterm (Induced)	1990	11
Preterm (Induced)	1995	13
Preterm (Induced)	2000	19
Preterm (without procedures)	1990	13
Preterm (without procedures)	1995	14
Preterm (without procedures)	2000	18
Term or postterm	1990	27
Term or postterm	1995	26
Term or postterm	2000	32