When did these changes take place?
The changes took place at different times as mentioned in the context:
- 1-5-1960 (entry 7)
- 1-11-1973 (entries 8 and 12)
- 1-11-2011 (entry 9)
- 1-11-1966 (entry 10)
- 9-11-2000 (entries 11 and 12)
- 1-1-2007 (entry 13)
- 31-10-2019 (entries 14, 15, 22 to 31 renumbered as 21 to 30 respectively)
- 1-12-1963 (entry 16)