What is the mixed (co-ed) ratio? How many women on the field?

We play with the Ratio Rule A

Extract from WFDF Rules of 5-on-5 Beach Ultimate 2019 Appendix:

A7 Mixed Division

A7.2. Ratio Rule A (“prescribed ratio” rule):

A7.2.1. At the start of the game, after the first disc flip, an additional disc flip happens with the winner selecting the gender ratio for the first point. For the second and third points the ratio must be the reverse of the first point. For the fourth and fifth points the ratio must be same as the first point. This pattern of alternating the ratio every two points repeats until the end of the game (half time has no impact on the pattern).