Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Date | Region | Label | Format | Catalog |
| --- | --- | --- | --- | --- |
| 1976.0 | Australia | CBS | LP | SBP 234929 |
| 1976.0 | New Zealand | CBS | LP | SBP 234929 |
| 1976.0 | Canada | Columbia | LP | PES 90413 |
| 1976.0 | Australia | CBS | CAS | PC 4929 |
| 1976.0 | Australia | Summit/Rainbow | CAS | SUL 3002 |
| 1977.0 | Australia | CBS | 2LP | SBP 241031 |
| 1980.0 | Japan | Epic/Sony | LP | 25•3P-232 |
| 1981.0 | Australia | Harmony | LP | HC 15070 |
| 1981.0 | Australia | Harmony | CAS | TCHC 15070 |
| 1981.0 | Australia | Summit/Rainbow | CAS | SC 3036 |
| 1988.0 | Australia | Columbia/ Sony | CD | 463016 2 |
| 1988.0 | Australia | CBS/Disctronics | CD | 463016 2 |
| 1988.0 | Australia | CBS | CAS | 463016 4 |
| 1991.0 | Australia | Rainbow | CD | RCD 1118 |
| 1992.0 | Australia | Rainbow | 2CD | 2RCD 111/112 |
| 1996.0 | Korea | Columbia/Sony | CD | 486553.2 |
| 1996.0 | Korea | Columbia/Sony | CAS | 486553.4 |
Question:
WHAT IS THE AVERAGE DATE FOR CBS LABEL, IN AUSTRALIA, AND SBP 241031 FOR CATALOG?
Answer:
1977.0