| Year Fat. mean Z | Popu-lation p-value | Fat. | Popu-lation prev. year | Fat. prev. year | Fat. diff. | P         | Fat. mean | Z     | P-value  |
|:---------------- | ------------------- | ---- | ---------------------- | --------------- | ---------- | --------- | --------- | ----- |:-------- |
| 2015             | 429344              | 11   | 425384                 | 10              | 1          | 0.0000246 | 10.55     | 0.2   | 0.841481 |
| 2014             | 425384              | 10   | 421364                 | 18              | -8         | 0.0000331 | 14.07     | -1.54 | 0.12356  |
| 2013             | 421364              | 18   | 417546                 | 9               | 9          | 0.0000322 | 13.56     | 1.71  | 0.087266 |
| 2012             | 417546              | 9    | 414989                 | 17              | -8         | 0.0000312 | 13.04     | -1.58 | 0.114107 |
| 2011             | 414989              | 17   | 414027                 | 15              | 2          | 0.0000386 | 16.02     | 0.35  | 0.726339 |
| 2010             | 414027              | 15   | 410926                 | 21              | -6         | 0.0000436 | 18.07     | -1.02 | 0.307728 |
| 2009             | 410926              | 21   | 407832                 | 15              | 6          | 0.000044  | 18.07     | 0.98  | 0.327086 |
| 2008             | 407832              | 15   | 405616                 | 14              | 1          | 0.0000357 | 14.54     | 0.17  | 0.86501  |
| 2007             | 405616              | 14   | 404999                 | 10              | 4          | 0.0000296 | 12.01     | 0.81  | 0.41794  |