Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. BC -2.5 21 -4.7 -0.3 ** 1.19 CAL -1.2 23 -3.2 0.9 0.13 WAS 3.6 19 -4.3 11.5 8.97 SUR -0.4 69 -3.0 2.3 1.63