Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. ARI 2.0 22 0.6 3.3 *** 0.10 BC 1.2 15 0.0 2.5 * 0.12 CAL 2.1 103 0.9 3.3 *** 0.43 ORE 0.5 24 -0.8 1.9 0.27 WAS 2.6 21 1.2 4.1 *** 0.12 SUR 2.1 190 1.0 3.1 *** 0.23