I'd be surprised if Minneapolis is 40% for transportation bicycling. My guess is maybe 25-30% (1 woman to ever 2 or 3 guys). Recreational riding may be 40% based on what I'd see on trails and the greenway. There was a count last year on the bridges in to Manhattan by gender and I believe it was about 15% female. Citibike had said that 24% of trips in 2014 were by women.

Netherlands is about 55% women for all trips or slightly more than gender parity. Germany, Sweden, Finland, and Denmark are about 45% or slightly under gender parity. Keep in mind as well that commuting is low on the bicycling scale for all of these countries with trips for eating, school, and shopping making up the majority of trips. The Netherlands also has age parity while other European countries are mostly 14 to 55 year olds.