Looking at this data set, what is the best estimate for the forecasting level and trend variables?

$\backslash$table$[[$Quarter period,Demand Deseasonalized,,$],[$I$,1,2543,],[$II$,2,1963,],[$III$,3,2726,4040],[$IV$,4,8214,4276],[$I$,5,3971,4481],[$II$,6,2422,4599],[$III$,7,3909,4654],[$IV$,8,7973,4828],[$I$,9,4656,4788],[$II$,10,3126,4830],[$III$,11,2888,5193],[$IV$,12,9326,5615],[$I$,13,6205,6091],[$II$,14,4952,6874],[$III$,15,4876,7430],[$IV$,16,13600,7356],[$I$,17,6382,7333],[$II$,18,4176,7558],[$III$,19,5473,],[$IV$,20,14800,]]$

Level $=243$; Trend $w21$

Level $-2930$; Trend $=256$

Level $=256$; Trend $=2930$

Level $-390$; Trend $=16$