Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. BC 1.0 23 -3.6 5.6 0.77 CAL 3.1 116 -0.1 6.4 * 70.07 ORE 6.6 28 0.3 12.9 ** 6.18 WAS -2.0 26 -6.2 2.1 5.11 SUR 3.3 256 0.0 6.5 * 10.85