Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. ARI 0.0 23 -3.1 3.1 4.87 BC 5.9 27 -0.7 12.5 * 5.40 CAL 2.3 77 -1.0 5.6 7.89 COL 1.9 41 0.4 3.3 ** 10.10 IDA 2.7 19 -0.8 6.2 1.92 MON 4.3 30 2.4 6.2 *** 4.28 NM 0.3 26 -1.2 1.8 5.43 ORE 1.2 40 -2.2 4.7 11.10 UT -0.1 16 -3.0 2.8 4.15 WAS -1.1 20 -2.3 0.1 * 2.08 WYO 2.1 18 -0.6 4.8 5.88 SUR 1.9 365 0.7 3.1 *** 5.12