Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. BC -2.2 26 -10.8 6.3 43.47 CAL -8.0 41 -25.0 9.0 291.36 WAS 4.4 20 -2.8 11.6 111.52 SUR -5.9 134 -16.4 4.7 80.13