| Single cross section regressions (OLS) | |||||
| Dependent variable: | |||||
|
| 1985-2010 | 1985-1995 | 1990-2000 | 1995-2005 | 2000-2010 |
| (i) | 0.702 (0.174) | 1.093 (0.122) | 0.725 (0.099) | 0.783* (0.097) | 0.694* (0.141) |
| (ii) | 0.774 (0.279) | 0.722 (0.171) | 1.257 (0.219) | 0.588 (0.201) | 0.713 (0.173) |
| (iii) | 0.997 (0.240) | 0.569* (0.187) | 1.074 (0.271) | 0.924 (0.169) | 0.696 (0.169) |
| obs | 31 | 31 | 31 | 31 | 31 |