That is terrible acoording to your reference
Let's calculate the approval rate for both 187&186 which is 47.71% and 74.15% respectively ! Sooooo bad situation about 187
I will give how to get this terrible number above
187 approval rate calculation
firstly, we can know how many applications pipeline leaved at 30 June 2017 which is 22661-3965=18696
Also, application pipeline leaved at 30 June 2018 is 22661
finally, Demand for places in the RSMS category in 2017-18, with 17003 application received
we can get how many applications Co dealed with totally in 2017-18 which is (applications pipeline leaved at 30 June 2017 + application received in 2017-18 - application pipeline leaved at 30 June 2018)=18696+17003-22661=13038
Approval rate=The RSMS outcome in 2017–18 /applications Co dealed with totally in 2017-18=6221/13038=47.71%
Same calculate with 186
Cases pipeline in 30 June 2017 is 29842+4556=34398
Cases pipeline in 30 June 2018 is 29842
Cases received in 2017-18 is 34966
Cases dealed in 2017-18 is 34398+34966-29842=39522
Approval rate about 186=29307/39522=74.15%