19810.436 19820.436 19830.431 19840.427 19850.402 19860.414 19870.405 19880.418 19890.411 19900.416 19910.411 19920.432 19930.405 19940.418 19950.418 19960.426 19970.427 19980.438 19990.437 20000.445 20010.445 20020.45 20030.445 20040.453 20050.441 20060.457 20070.46 20080.441 20090.441 20100.427 20110.406 20120.381 20130.388 20140.385 20150.391 20170.384 20160.386