Year	% (national estimate)
1970	91.19718309859155
1989	80.28021474400943
1997	100.43668122270743
1999	80.32287541882425
2006	94.11972452763551
2007	93.5861586857742
2008	94.55922865013775
2009	80.23255813953489
2015	108.36501901140683
2016	88.98523739859024
2017	88.49824672414248
2018	86.96634230259099
2019	87.87288719334498
2020	87.03286509408959
2021	87.7975197234051
2022	87.4109800170068