Table 1.

Incidence of repositioning with casting per 100,000 person-years among girls and boys aged 0–16 years between 1987 and 2010

	0–6 years	7–12 years	13–16 years
1987	1.6	0.3	0.8
1988	0.7	0.8	1.2
1989	1.6	1.5	0.8
1990	0.9	1	1.9
1991	0.7	0.8	1.9
1992	1.1	1.3	1.1
1993	1.8	2	0.4
1994	1.5	1.8	1.2
1995	1.9	2.3	0.8
1996	2	2.4	1.5
1997	0.7	0.8	1.1
1998	0.9	1	1.5
1999	1.9	2	0.8
2000	1	1	0.8
2001	1.5	1.5	0
2002	0.7	0.8	0.8
2003	1.8	1.8	1.1
2004	1.5	1.6	0.8
2005	1.8	1.9	1.5
2006	0.5	0.6	0.4
2007	1.5	1.7	1.1
2008	0.2	0.3	0.8
2009	1	1.1	0.4
2010	0	0	0