bug: added xlabel
bug: only 1 graph correct
enh: consistent font size
enh: forward sim correct spacing
enh: rate font size
enh: more font and axis formating
enh: cov_fe now 2 panels, no legend
enh: 2 of 5 figs share axis
enh: 3 of 5 figs share axis
enh: ~43 of 5 figs share axis
enh: figs share axis
enh: ylabel rotation and smaller
enh: ylabel rotation
enh: small plot option, looks terrible, old kept
enh: age_group_models no legend
enh: legends below
enh: legends under figures
enh: legends under fig cont, delete possion approx
remove old figs from book, new are in graphics
enh: suppress output