Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.069594 -0.033583 -0.006567  0.013555  0.222837 

Coefficients:
             Estimate Std. Error t value Pr(>|t|)  
(Intercept)  0.074057   0.043357   1.708   0.0881 .
xAP         -0.040462   0.043434  -0.932   0.3519  
xAP-REG     -0.073931   0.053101  -1.392   0.1643  
xAP:LTS     -0.074055   0.061316  -1.208   0.2276  
xAP:P       -0.055173   0.061316  -0.900   0.3685  
xAP:REG     -0.066491   0.047495  -1.400   0.1620  
xAP:S       -0.025750   0.047495  -0.542   0.5879  
xDP         -0.015192   0.046350  -0.328   0.7432  
xDP:LTS     -0.054408   0.053101  -1.025   0.3059  
xDP:S       -0.035558   0.053101  -0.670   0.5033  
xDP/S       -0.073831   0.050064  -1.475   0.1407  
xLAW        -0.072537   0.043670  -1.661   0.0972 .
xLAW:REG    -0.059515   0.048474  -1.228   0.2200  
xLTS        -0.067202   0.044251  -1.519   0.1293  
xNAPA       -0.002509   0.061316  -0.041   0.9674  
xNM         -0.074052   0.061316  -1.208   0.2276  
xP          -0.009669   0.044183  -0.219   0.8268  
xPNACC       0.010568   0.061316   0.172   0.8632  
xREG        -0.067477   0.043909  -1.537   0.1248  
xREG:AP     -0.074038   0.061316  -1.207   0.2277  
xREG:LTS    -0.074055   0.061316  -1.208   0.2276  
xREG:S      -0.008147   0.061316  -0.133   0.8943  
xS          -0.033414   0.043460  -0.769   0.4422  
xS-AP       -0.050969   0.048474  -1.051   0.2934  
xS:AP       -0.004459   0.045702  -0.098   0.9223  
xS:REG      -0.032985   0.046350  -0.712   0.4769  
xS/AP       -0.061997   0.061316  -1.011   0.3123  
xS/DP       -0.074045   0.061316  -1.208   0.2276  
xS/REG      -0.044437   0.061316  -0.725   0.4689  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.04336 on 683 degrees of freedom
Multiple R-squared:  0.1293,	Adjusted R-squared:  0.09356 
F-statistic: 3.621 on 28 and 683 DF,  p-value: 0.000000001996