过去20多年，不管谁在台上，还没有降下来过，只有往上走？

YEAR	ESTATE TAX EXEMPTION	TOP ESTATE TAX RATE
1997	$600,000	55%
1998	$625,000	55%
1999	$650,000	55%
2000	$675,000	55%
2001	$675,000	55%
2002	$1,000,000	50%
2003	$1,000,000	49%
2004	$1,500,000	48%
2005	$1,500,000	47%
2006	$2,000,000	46%
2007	$2,000,000	45%
2008	$2,000,000	45%
2009	$3,500,000	45%
2010	$5,000,000 or $0	35% or 0%
2011	$5,000,000	35%
2012	$5,120,000	35%
2013	$5,250,000	40%
2014	$5,340,000	40%
2015	$5,430,000	40%
2016	$5,450,000	40%
2017	$5,490,000	40%
2018	$11,180,000	40%
2019	$11,400,000	40%
2020	$11,580,000	40%
2021	$11,700,000	40%
2022	$12,060,000	40%