NA = "NA"
0 = "0"
1:200 = "1-200"
201:400 = "201-400"
401:600 = "401-600"
601:800 = "601-800"
801:1000 = "801-1000"
1001:1200 = "1001-1200"
1201:1400 = "1201-1400"
1401:1600 = "1401-1600"
1601:1800 = "1601-1800"
1801:2040 = "1801-2040"
NA = "NA"
0 = "0"
1:200 = "1-200"
201:400 = "201-400"
401:600 = "401-600"
601:800 = "601-800"
801:1000 = "801-1000"
1001:1200 = "1001-1200"
1201:1400 = "1201-1400"
1401:1600 = "1401-1600"
1601:1800 = "1601-1800"
1801:2040 = "1801-2040"