Divorce rates have been steadily falling and are at a 20-year low in both the UK and the US. In contrast, Michelle Obama mostly out-earned Barack, became one of Americas most popular First Ladies, and seems to enjoy (with a lot of hard work and negotiation described in her book) a more egalitarian relationship than either of the other ladies in our (admittedly limited) sample. These differences are not, of course, caused by gender but by power. Pick someone closer to your own age. On average, women are still marrying men on average four years older than they are.
divorce rates have been somewhat rising.
( z0 rise :ARG1 ( z1 rate :mod ( z2 divorce ) ) :degree ( z3 somewhat ) )
(z0 / rise-01
    :ARG1 (z1 / rate
              :mod (z2 / divorce-01))
    :degree (z3 / somewhat))
divorce rates have been somewhat rising .
z1 :mod z2
z0 :degree z3
z0 :ARG1 z1