Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. BC 4.1 15 0.3 7.8 ** 1.51 CAL 2.2 32 -3.5 7.8 1.74 COL 2.8 28 -1.4 7.1 1.00 MON 1.4 26 -0.5 3.4 1.86 ORE -0.5 15 -4.1 3.1 1.02 WYO 3.4 14 -3.6 10.4 2.08 SUR 2.1 196 0.7 3.5 *** 1.54