Table 8. Freight demand forecast results

ln_df reight Coef. Std. Err. t P>|t| 95% Conf. Interval
t -.06268 .01669 -3.76 0.000 -.09603 -.02933
q1 .16937 .03937 4.30 0.000 .09070 .24805
q3 .02127 .01995 1.07 0.290 -.01860 .06113
q4 -.09259 .03238 -2.86 0.006 -.15730 -.02788
imf .03253 .05061 0.64 0.523 -.06860 .13365
subp .02311 .02717 0.85 0.398 -.03118 .07740
911 -.05859 .03268 -1.79 0.078 -.12389 .00671
sars -.01701 .03279 -0.52 0.606 -.08253 .04851
mers -.05652 .04723 -1.20 0.236 -.15089 .03786
consump .00762 .00414 1.84 0.070 -.00065 .01589
gdp 1.6719 .25799 6.48 0.000 1.1563 2.1874
_cons 9.7793 .31536 31.01 0.000 9.1492 10.410