变动日期	经营现金净流量对负债比率
2019-06-30	0.0293
2019-03-31	-0.0627
2018-12-31	0.1133
2018-09-30	-0.0049
2018-06-30	0.0321
2018-03-31	0.0185
2017-12-31	0.0782
2017-09-30	-0.0253
2017-06-30	-0.0298
2017-03-31	-0.0439
2016-12-31	0.2550
2016-09-30	0.1367
2016-06-30	0.0898
2016-03-31	0.1101
2015-12-31	0.4580
2015-09-30	0.2102
2015-06-30	0.2717
2015-03-31	0.0061
2014-12-31	0.3282
2014-09-30	0.1158
2014-06-30	0.2537
2014-03-31	0.2676
2013-12-31	0.2109
2013-09-30	0.0854
2013-06-30	0.0465
2013-03-31	0.0487
2012-12-31	0.0204
2012-09-30	0.0387
2012-06-30	0.0436
2012-03-31	0.1526
2011-12-31	0.3309
2011-09-30	0.1450
2011-06-30	0.0830
2011-03-31	0.0356
2010-12-31	-0.0907
2010-09-30	0.2008
2010-06-30	0.4217
2010-03-31	0.4070
2009-12-31	0.0444
2009-09-30	0.1098
2009-06-30	0.1524
2009-03-31
2008-12-31	0.2198
2008-09-30
2007-12-31	0.0524
2006-12-31	0.0546