[inflation_history] Remove Tables and Update Code Length (#324)

* remove tables and update code length

* revert changes on `applymap`

* fix typos

* update code length

* Update lectures/inflation_history.md

Co-authored-by: mmcky <mmcky@users.noreply.github.com>

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Co-authored-by: mmcky <mmcky@users.noreply.github.com>

Author: HumphreyYang