Year,System,n,GeomeanIndex,95% CI (low),95% CI (high)
1985,HEAD OF BAY,42,0.19,0.08,0.31
1986,HEAD OF BAY,42,0.90,0.52,1.37
1987,HEAD OF BAY,42,0.16,0.01,0.32
1988,HEAD OF BAY,42,2.25,1.19,3.82
1989,HEAD OF BAY,42,8.54,5.18,13.71