"year","pack_id","prop_mopane"
"1989",58,0.073
"1989",63,0.555
"1990",58,0.073
"1990",63,0.555
"1990",80,0.107
"1990",77,0.395
"1990",24,0.601
"1991",58,0.073
"1991",77,0.517
"1991",24,0.601
"1991",106,0.118
"1991",13,0.037
"1991",26,0.009
"1991",103,0.164
"1991",1,0.109
"1992",58,0.073
"1992",77,0.432
"1992",106,0.188
"1992",26,0.009
"1992",103,0.164
"1992",76,0.261
"1992",109,0.154
"1992",53,0.606
"1992",15,0.294
"1992",38,0.002
"1993",58,0.073
"1993",77,0.517
"1993",106,0.203
"1993",26,0.009
"1993",103,0.164
"1993",76,0.261
"1993",15,0.294
"1993",38,0.002
"1993",105,0.161
"1993",70,0.067
"1993",49,0.112
"1993",51,0.339
"1994",77,0.512
"1994",106,0.262
"1994",103,0.164
"1994",15,0.294
"1994",38,0.002
"1994",70,0.067
"1994",51,0.339
"1994",138,0.004
"1994",40,0.006
"1995",106,0.316
"1995",103,0.164
"1995",15,0.294
"1995",70,0.067
"1995",40,0.006
"1995",180,0.062
"1995",163,0.535
"1995",65,0.496
"1996",15,0.294
"1996",70,0.067
"1996",65,0.496
"1996",19,0.379
"1996",35,0.545
"1996",6,0.029
"1996",90,0.471
"1996",72,0.308
"1996",71,0.068
"1997",15,0.294
"1997",19,0.379
"1997",35,0.545
"1997",6,0.029
"1997",72,0.443
"1997",71,0.068
"1997",74,0.129
"1998",15,0.294
"1998",19,0.379
"1998",35,0.545
"1998",6,0.029
"1998",72,0.34
"1998",71,0.068
"1998",74,0.129
"1998",68,0.137
"1999",15,0.294
"1999",35,0.545
"1999",6,0.029
"1999",72,0.623
"1999",71,0.068
"1999",74,0.129
"1999",27,0.021
"1999",142,0.016
"2000",15,0.294
"2000",35,0.545
"2000",72,0.678
"2000",71,0.068
"2000",74,0.129
"2001",19,0.379
"2001",71,0.068
"2001",74,0.129
"2001",85,0.194
"2001",88,0.005
"2001",110,0.363
"2001",112,0.442
"2002",19,0.379
"2002",74,0.129
"2002",88,0.005
"2002",110,0.363
"2002",112,0.442
"2002",57,0.012
"2002",169,0.173
"2003",19,0.379
"2003",74,0.129
"2003",110,0.363
"2003",112,0.442
"2003",169,0.173
"2004",74,0.129
"2004",110,0.363
"2004",112,0.442
"2004",169,0.173
"2004",32,0.054
"2005",110,0.363
"2005",112,0.442
"2005",169,0.173
"2005",2,0.114
"2005",56,0.112
"2005",131,0.041
"2006",110,0.363
"2006",2,0.114
"2006",56,0.112
"2006",131,0.041
"2006,2007,2008",55,0.45
"2007",110,0.363
"2007",56,0.112
"2007",9,0.095
"2008",110,0.363
"2008",56,0.112
"2008",9,0.095
"2008",29,0.349
"2009",110,0.363
"2009",56,0.112
"2009",9,0.095
"2009",29,0.349
"2009",14,0.556
"2009,2010,2011,2012",55,0.441
"2010",110,0.363
"2010",56,0.112
"2010",9,0.095
"2010",29,0.349
"2011",110,0.363
"2011",56,0.112
"2011",9,0.095
"2011",29,0.349
"2011",14,0.556
"2011",91,0.441
"2011",39,0.045
"2012",56,0.112
"2012",9,0.095
"2012",29,0.349
"2012",14,0.556
"2012",91,0.441
"2012",45,0.034
"2012",41,0.007
"2012",135,0.556
"2013",56,0.112
"2013",9,0.095
"2013",41,0.007
"2013",135,0.556
"2013",17,0.554
"2013",99,0.235
"2013",7,0.148
"2013",61,0.393
"2013",3,0.069
"2013",114,0.491
"2013",67,0.015
"2013",43,0.438
"2013",28,0.079
"2014",135,0.556
"2014",17,0.554
"2014",99,0.235
"2014",7,0.148
"2014",61,0.408
"2014",3,0.069
"2014",114,0.491
"2014",67,0.015
"2014",43,0.438
"2014",28,0.079
"2014",93,0.006
"2014",23,0.521
"2015",17,0.554
"2015",99,0.235
"2015",7,0.148
"2015",61,0.348
"2015",3,0.069
"2015",114,0.491
"2015",67,0.015
"2015",28,0.079
"2015",93,0.006
"2015",23,0.521
"2015",33,0.028
"2015",89,0.319
"2015",82,0.005
"2015",166,0.005
"2016",61,0.163
"2016",3,0.069
"2016",114,0.491
"2016",67,0.015
"2016",28,0.079
"2016",33,0.028
"2016",89,0.319
"2016",79,0.222
"2016",69,0.29
"2017",61,0.22
"2017",3,0.069
"2017",114,0.491
"2017",67,0.015
"2017",28,0.079
"2017",89,0.319
"2017",79,0.222
"2017",69,0.29
"2017",119,0.073
"2017",84,0.186
"2018",61,0.155
"2018",3,0.069
"2018",114,0.491
"2018",67,0.015
"2018",89,0.319
"2018",79,0.222
"2018",69,0.29
"2018",116,0.253
"2018",117,0.508
"2018",205,0.296
"2018",187,0.437
"2019",61,0.183
"2019",3,0.069
"2019",67,0.015
"2019",69,0.29
"2019",119,0.073
"2019",205,0.296
"2019",195,0.225
"2019",193,0.004
"2019",192,0.295
"2019",172,0.013
"2019",210,0.481
"2020",61,0.136
"2020",3,0.069
"2020",69,0.29
"2020",205,0.296
"2020",193,0.004
"2020",192,0.295
"2020",172,0.013
"2020",224,0.014
"2020",223,0.055