Their names are:
Angela Merkel -- Chancellor of Germany
Sonia Ghandi -- A politician so powerful she's turned down presidency... twice
Dilma Rousseff -- President of Brazil
Hillary Clinton -- 'nuff said
Christine Langarde -- Took over the International Monetary Fund after the Strauss-Kahn fiasco
Jill Abramson -- Executive Editor of the New York Times
This list feels incomprehensibly small to me.