Region |-----------1959 - 1988 trends----------|
Trend N ( 95% CI ) Sign. Rel. Abu.
ARI -0.1 43 -1.3 1.2 0.84
CAL -0.1 73 -1.2 1.0 0.50
NM 0.6 24 -0.8 1.9 0.68
OKL -0.7 18 -1.7 0.3 0.19
TEX 0.2 101 -1.0 1.4 0.69
SUR 0.2 289 -0.8 1.1 0.48