Superior Savings Bank
Superior, WI — State Savings Bank
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Net Interest Margin Over Time
| Net Interest Margin | Superior Savings Bank | All Insured Savings Banks in Wisconsin |
| 12-31-2016 | 3.129 | 3.206 |
| 09-30-2016 | 3.119 | 3.233 |
| 06-30-2016 | 3.08 | 3.22 |
| 03-31-2016 | 3.087 | 3.218 |
| 12-31-2015 | 3.173 | 3.233 |
| 09-30-2015 | 3.208 | 3.228 |
| 06-30-2015 | 3.23 | 3.239 |
| 03-31-2015 | 3.205 | 3.265 |
| 12-31-2014 | 3.376 | 3.214 |
| 09-30-2014 | 3.378 | 3.226 |
| 06-30-2014 | 3.35 | 3.206 |
| 03-31-2014 | 3.395 | 3.22 |
| 12-31-2013 | 3.382 | 3.23 |
| 09-30-2013 | 3.471 | 3.232 |
| 06-30-2013 | 3.532 | 3.228 |
| 03-31-2013 | 3.46 | 3.259 |
| 12-31-2012 | 3.975 | 3.445 |
| 09-30-2012 | 4.01 | 3.458 |
| 06-30-2012 | 4.086 | 3.45 |
| 03-31-2012 | 4.226 | 3.496 |
| 12-31-2011 | 4.345 | 3.567 |
| 09-30-2011 | 4.435 | 3.568 |
| 06-30-2011 | 4.364 | 3.54 |
| 03-31-2011 | 4.396 | 3.478 |
| 12-31-2010 | 4.263 | 3.474 |
| 09-30-2010 | 4.335 | 3.468 |
| 06-30-2010 | 4.186 | 3.458 |
| 03-31-2010 | 4.172 | 3.472 |
| 12-31-2009 | 4.142 | 3.23 |
| 09-30-2009 | 4.168 | 3.238 |
| 06-30-2009 | 4.291 | 3.208 |
| 03-31-2009 | 4.284 | 3.237 |
| 12-31-2008 | 3.829 | 2.984 |
| 09-30-2008 | 3.765 | 2.942 |
| 06-30-2008 | 3.589 | 2.875 |
| 03-31-2008 | 3.346 | 2.772 |
| 12-31-2007 | 3.375 | 2.821 |
| 09-30-2007 | 3.379 | 2.836 |
| 06-30-2007 | 3.306 | 2.825 |
| 03-31-2007 | 3.329 | 2.812 |
| 12-31-2006 | 3.589 | 2.981 |
| 09-30-2006 | 3.688 | 3.021 |
| 06-30-2006 | 3.787 | 3.051 |
| 03-31-2006 | 3.946 | 3.093 |
| 12-31-2005 | 4.312 | 3.375 |
| 09-30-2005 | 4.452 | 3.416 |
| 06-30-2005 | 4.607 | 3.461 |
| 03-31-2005 | 4.84 | 3.518 |
| 12-31-2004 | 4.568 | 3.528 |
| 09-30-2004 | 4.592 | 3.56 |
| 06-30-2004 | 4.644 | 3.562 |
| 03-31-2004 | 4.531 | 3.607 |
| 12-31-2003 | 4.242 | 3.471 |
| 09-30-2003 | 4.223 | 3.461 |
| 06-30-2003 | 4.315 | 3.549 |
| 03-31-2003 | 4.34 | 3.653 |
| 12-31-2002 | 4.31 | 3.666 |