Year

Pre-tax Gini coefficient G

After-tax Ginicoefficient G*

MT index

Tax concentration ratio C

Progressive index P

1999

0.2322

0.2317

0.0005

0.6033

0.3711

2000

0.2458

0.2440

0.0018

0.5946

0.3488

2001

0.2567

0.2544

0.0023

0.5974

0.3407

2002

0.3081

0.3073

0.0008

0.6542

0.3461

2003

0.3169

0.3152

0.0017

0.6881

0.3712

2004

0.3276

0.3231

0.0045

0.6975

0.3699

2005

0.3322

0.3294

0.0028

0.6748

0.3426

2006

0.3292

0.3257

0.0035

0.7235

0.3943

2007

0.3249

0.3201

0.0038

0.7267

0.4018

2008

0.3305

0.3282

0.0023

0.7360

0.4055

2009

0.3237

0.3214

0.0023

0.7141

0.3904

2010

0.3174

0.3151

0.0023

0.6918

0.3744

2011

0.3183

0.3152

0.0031

0.6997

0.3814

2012

0.3054

0.3030

0.0024

0.7477

0.4423