Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. ARI -5.9 31 -10.6 -1.1 ** 41.63 NM 10.7 14 3.0 18.5 *** 20.16 TEX -3.7 75 -8.7 1.3 103.30 SUR -3.7 144 -7.9 0.4 * 46.59