t) - log(prcpet[_n-1])</p></li>
<li><p><strong>gres:</strong> log(rresc) - log(rresc[_n-1])</p></li>
<li><p><strong>gnon:</strong> log(rnonc) - log(rnonc[_n-1])</p></li>
<li><p><strong>gip:</strong> log(ip) - log(ip[_n-1])</p></li>
<li><p><strong>gdefs:</strong> log(rdefs) - log(rdefs[_n-1])</p></li>
<li><p><strong>gmilemp:</strong> log(milemp) - log(milemp[_n-1])</p></li>
<li><p><strong>jan:</strong> =1 if month == 1</p></li>
<li><p><strong>feb:</strong> =1 if month == 2</p></li>
<li><p><strong>mar:</stron