----------------------- copy starting from the next line -----------------------
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input str3 Code int year float PCM
- "B06" 2011 .0267705
- "B06" 2011 .09002516
- "B06" 2011 .09734753
- "B06" 2011 .11143867
- "B06" 2011 .11578244
- "B06" 2011 .12081849
- "B06" 2011 .13537087
- "B06" 2011 .13539429
- "B06" 2011 .16229916
- "B06" 2011 .166527
- "B06" 2011 .1913324
- "B06" 2011 .19938263
- "B06" 2011 .2233263
- "B06" 2011 .22813974
- "B06" 2011 .25928566
- "B06" 2011 .2713765
- "B06" 2011 .29223177
- "B06" 2011 .3144869
- "B06" 2011 .3173782
- "B06" 2011 .3289018
- "B06" 2011 .3373108
- "B06" 2011 .3464891
- "B06" 2011 .42665765
- "B06" 2012 .04389937
- "B06" 2012 .05333589
- "B06" 2012 .05602201
- "B06" 2012 .08481598
- "B06" 2012 .09672505
- "B06" 2012 .10274196
- "B06" 2012 .10337128
- "B06" 2012 .11910181
- "B06" 2012 .12159542
- "B06" 2012 .12192815
- "B06" 2012 .13886811
- "B06" 2012 .1485959
- "B06" 2012 .17289655
- "B06" 2012 .17988585
- "B06" 2012 .18169673
- "B06" 2012 .2078817
- "B06" 2012 .232855
- "B06" 2012 .27378494
- "B06" 2012 .28636163
- "B06" 2012 .28955
- "B06" 2012 .29017198
- "B06" 2012 .29401025
- "B06" 2012 .29750168
- "B06" 2013 .032615792
- "B06" 2013 .037209775
- "B06" 2013 .04346686
- "B06" 2013 .04828417
- "B06" 2013 .07002009
- "B06" 2013 .08367691
- "B06" 2013 .0865539
- "B06" 2013 .09437768
- "B06" 2013 .0966887
- "B06" 2013 .09677957
- "B06" 2013 .09742563
- "B06" 2013 .10405883
- "B06" 2013 .1043473
- "B06" 2013 .13910799
- "B06" 2013 .14829908
- "B06" 2013 .1602661
- "B06" 2013 .1605567
- "B06" 2013 .1699708
- "B06" 2013 .1735475
- "B06" 2013 .17747703
- "B06" 2013 .20895855
- "B06" 2013 .24392116
- "B06" 2013 .27105647
- "B06" 2014 -.1223806
- "B06" 2014 .019122506
- "B06" 2014 .022352817
- "B06" 2014 .035189696
- "B06" 2014 .03822609
- "B06" 2014 .04419961
- "B06" 2014 .05029268
- "B06" 2014 .05030751
- "B06" 2014 .06363694
- "B06" 2014 .06539659
- "B06" 2014 .072285526
- "B06" 2014 .07246625
- "B06" 2014 .073089324
- "B06" 2014 .07417262
- "B06" 2014 .08125136
- "B06" 2014 .09740695
- "B06" 2014 .1176621
- "B06" 2014 .13821442
- "B06" 2014 .1627186
- "B06" 2014 .1654213
- "B06" 2014 .18196563
- "B06" 2014 .18737814
- "B06" 2014 .26734573
- "B06" 2015 -.29771957
- "B06" 2015 -.2015149
- "B06" 2015 -.1804974
- "B06" 2015 -.08651625
- "B06" 2015 -.068301074
- "B06" 2015 -.04412603
- "B06" 2015 -.029554315
- "B06" 2015 .03198549
- end
------------------ copy up to and including the previous line ------------------
数据已经分组从小到大排列了