Any falling graph tends to cause concern, but the context is important. Just over 70.1% of patients were seen at the end of 2018, a fall of 0.6% from the end of 2017. The fall from the high point in 2012 is nearly 18%.
However, the increase in demand for outpatient treatment, since only 2014 has been a massive 26.9% and for inpatient treatment, it has seen an almost irresistible surge of 34.9%:
That demand has increased by between 26.9 and 34.9%, while performance has only fallen by less than 18% means, unequivocally, that performance has improved dramatically at the same time.
Give these people a medal!