period,before_price,after_price,increase_rate
2001-08,185.000000,218.000000,0.178000
2003-10,218.000000,268.000000,0.229000
2006-02,268.000000,308.000000,0.149000
2007-03,308.000000,358.000000,0.162000
2008-01,358.000000,439.000000,0.226000
2010-01,439.000000,499.000000,0.137000
2011-01,499.000000,619.000000,0.240000
2012-09,619.000000,819.000000,0.323000
2018-01,819.000000,969.000000,0.183000
2023-11,969.000000,1169.000000,0.206000
2026-03,1169.000000,1269.000000,0.086000
2026-07,1269.000000,1369.000000,0.079000