Region |-----------1959 - 1988 trends----------|
Trend N ( 95% CI ) Sign. Rel. Abu.
BC 0.3 19 -1.0 1.6 0.18
CAL 4.9 85 -10.8 20.6 79.37
KAN 2.0 18 -25.0 28.9 42.04
LA 3.8 14 -24.9 32.5 30.68
MO 5.1 14 1.2 9.1 ** 3.42
ORE -0.7 24 -2.6 1.3 1.06
TEX 9.2 61 5.4 13.0 *** 32.84
WAS 0.5 16 -1.7 2.7 0.05
SUR 7.5 389 -1.2 16.2 * 15.97