Index | Standard difference | Change tendency rate | Average value | |||||
Over the years | The 1960s | The 1970s | The 1980s | The 1990s | From the year of 2000s | |||
FD | 10.05 | 4.8 | 162.64 | 169.88 | 167.47 | 166.69 | 162.18 | 146.78 |
ID | 8.85 | 2.75 | 68.799 | 72.07 | 73.8 | 69.3 | 67.8 | 60.9 |
TXn | 3.29 | 0.16 | −14.917 | −15.8 | −15 | −13.3 | −12.8 | −17.8 |
TNn | 3.01 | 0.505 | −26.504 | −27.8 | −27.4 | −24.7 | −24.2 | −28.4 |
TN10 | 3.88 | 2.237 | 8.44 | 12.7 | 11.1 | 8.1 | 6.4 | 3.9 |
TX10 | 2.81 | 0.879 | 9.54 | 10.4 | 10.9 | 10 | 8.9 | 7.5 |