Region |-----------1959 - 1988 trends----------|
Trend N ( 95% CI ) Sign. Rel. Abu.
BC 2.9 20 1.6 4.2 *** 0.17
CAL 2.7 61 -0.1 5.5 * 0.12
NY 0.2 16 -0.7 1.0 0.01
ORE 3.0 19 1.5 4.5 *** 0.10
WAS 2.0 28 0.3 3.7 ** 0.22
SUR 2.7 218 1.6 3.8 *** 0.07