1999-2007
1999-2008
2009-2013
1999-2013
Coeff.
t
Coeff.
t
Coeff.
t
Coeff.
t
k
−0.133
−3.426
−0.100
−2.542
0.263
12.265
0.146
7.896
0.351
29.741
0.341
29.425
0.138
4.836
0.271
41.114
0.893
0.880
0.287
0.905
|
| 1999-2007 | 1999-2008 | 2009-2013 | 1999-2013 | ||||
|
| Coeff. | t | Coeff. | t | Coeff. | t | Coeff. | t |
| k | −0.133 | −3.426 | −0.100 | −2.542 | 0.263 | 12.265 | 0.146 | 7.896 |
|
| 0.351 | 29.741 | 0.341 | 29.425 | 0.138 | 4.836 | 0.271 | 41.114 |
|
| 0.893 | 0.880 | 0.287 | 0.905 | ||||