1 annual, which should be noted as GOTG Annual (4th series):
1st series - 4 annuals (1st series)
2nd series - no annuals
3rd series - 1 annual (2nd series)
4th series - no annuals
5th series - 1 annual (3rd series)
6th series - 1 annual (4th series)
7th series - 1 annual (5th series)