Region |-----------1959 - 1988 trends----------| Trend N ( 95% CI ) Sign. Rel. Abu. ARI -8.5 15 -13.1 -3.8 *** 12.24 CAL -1.7 19 -9.8 6.3 7.64 COL -0.8 23 -5.7 4.1 5.61 NM 2.5 16 -0.1 5.1 * 28.94 SUR 1.3 127 -1.2 3.8 12.66