Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. ARI -4.1 34 -15.2 7.0 2.92 BC -5.9 21 -11.7 -0.1 ** 0.55 CAL -0.8 119 -3.1 1.5 199.27 NM 2.4 17 -14.1 18.9 7.11 ORE -0.2 23 -1.6 1.2 0.21 TEX -5.6 100 -11.8 0.6 * 5.22 WAS -6.1 27 -13.2 1.1 * 2.32 SUR -1.8 502 -4.4 0.8 16.47