Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. ARI -0.2 17 -2.8 2.4 3.71 NM 1.4 16 -5.8 8.7 4.79 TEX -10.5 42 -17.3 -3.6 *** 20.43 SUR -8.5 82 -13.7 -3.3 *** 10.00