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:
| First issued | Design | Slogan | Serial format | Serials issued | Notes |
| --- | --- | --- | --- | --- | --- |
| 1957-65 (odd years only) | Embossed white on forest green with uncolored border line; VERMONT embossed in plain block letters centered below numbers, with last two digits of registration year in similar font at bottom right | SEE embossed in same letters as VERMONT, at lower left | 12345 (rounded numbers) |  | Alternated with white plates from 1957 to 1966 |
| 1958-66 (even years only) | Embossed forest green on white with uncolored border line; VERMONT embossed in plain block letters centered below numbers, with last two digits of registration year in similar font at bottom right | SEE embossed in same letters as VERMONT, at lower left | 12345 (rounded numbers)\nA1234 (1962 only) |  | Alternated with forest green plates from 1957 to 1966 |
| 1967 | Embossed white on green with border line; VERMONT embossed in plain block letters centered below numbers, with last two digits of registration year in similar font at bottom right | None | 1234\nA-1234\n1234-A |  | Color changed from forest green to the kelly green used today |
| 1969 | Embossed white on green with border line; VERMONT embossed in plain block letters centered below numbers; registration sticker at bottom right corner | SEE embossed in lower left corner | 1234\nA-1234\n1234-A |  | SEE returned to plate |
| 1972 | Embossed white on green with border line; VERMONT embossed in plain block letters centered above numbers; registration sticker at bottom left corner | SEE embossed in top left corner | A-1234\n1234-A\nAB-123\nA123B |  |  |
| 1976 | Embossed white on green with border line; VERMONT embossed in plain block letters centered below numbers; white circle embossed to lower left; registration sticker at lower right | GREEN MOUNTAINS embossed in thin block letters centered above numbers | A-1234\n1234-A\nAB123\n123AB |  |  |
| 1977 | Embossed white on green with beveled edge and white rectangular box around numbers; Vermont in white stylized font screened above white box, with white sugar maple in upper left corner; registration sticker at lower right corner | Green Mountain State screened in white plain serifed font centered below white box | 123A4 (rounded numbers) |  |  |
| 1985 | Embossed white on green with beveled edge and white rectangular box around numbers; Vermont in white stylized font screened above white box, with white sugar maple in upper left corner; registration sticker at lower right corner | Green Mountain State screened in white plain serifed font centered below white box | 1A234\n123A4\n1AB23\n12AB3\nABC 123\n123A456 (more rectangular numbers than previous set) | 1A100 to 9Y999\n100A1 to 999Y9\n1AA00 to ?F?99\n00AA1 to 99??9\nAAB 100 to present\n100A100 to present | The "1AA" series never reached 1GA\nCurrently, the letters I, J, O, Q, U, V and Z are not in regular use.\nThe "100A100" series are new truck plates issued starting in mid-2009. |
Question:
how many different passenger baseplates for vehicle registration have been used in vermont?
Answer:
8