The Highways Department Construction Cost Index (HyD CCI)), which was retitled from HyD plant index in January 1989, is a monthly index compiled by Highways Department as a means of relating the cost of highways works at current prices to those at November 1975. The HyD CCI is the total of 60% of the average Material Index and 40% of Labour Index published monthly by the Census & Statistics Department.
| YEAR | MONTH | HyD CCI |
|---|---|---|
| 1997 | 10 | 788.7 |
| 11 | 791.5 | |
| 12 | 800.9 | |
| 1998 | 1 | 802.8 |
| 2 | 806.4 | |
| 3 | 811.0 | |
| 4 | 809.6 | |
| 5 | 813.3 | |
| 6 | 812.8 | |
| 7 | 807.9 | |
| 8 | 810.4 | |
| 9 | 815.4 | |
| 10 | 818.3 | |
| 11 | 821.4 | |
| 12 | 821.1 | |
| 1999 | 1 | 820.2 |
| 2 | 819.1 | |
| 3 | 818.7 | |
| 4 | 818.5 | |
| 5 | 815.2 | |
| 6 | 817.3 | |
| 7 | 822.6 | |
| 8 | 825.0 | |
| 9 | 825.0 |