Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. ARI 0.9 34 -2.4 4.2 10.61 CAL 6.3 25 -2.3 14.9 2.61 NM -1.8 17 -8.8 5.1 2.17 TEX -1.8 60 -4.8 1.1 4.46 SUR -0.2 151 -2.2 1.8 3.88