https://twitter.com/endlesspint8/status/777466177215983616

us_craft_import_bbl.py

def craft_import_match(year, overall, overall_growth, craft, craft_growth, imp, imp_growth):
    print "starting metrics:"
    print "year:", year
    print "overall %d BBLS and %3.3f percent growth" % (overall, overall_growth)
    print "craft %d BBLS & %2.3f percent growth" % (craft, craft_growth)
    print "import %d BBLS & %2.3f percent growth" % (imp, imp_growth)
    print "\nyear\toverall_bbl\tcraft_bbl\timport_bbl"
    
    while craft < imp:
        year += 1
        overall += overall * overall_growth
        craft += craft * craft_growth
        imp += imp * imp_growth
        
        print year, overall, craft, imp
    
craft_import_match(2015, 196701792, -0.02, 24076864, 0.128, 31245124, 0.062)

# starting metrics:
# year: 2015
# overall 196701792 BBLS and -0.020 percent growth
# craft 24076864 BBLS & 0.128 percent growth
# import 31245124 BBLS & 0.062 percent growth

# year	overall_bbl	craft_bbl	import_bbl
# 2016 192767756.16 27158702.592 33182321.688
# 2017 188912401.037 30635016.5238 35239625.6327
# 2018 185134153.016 34556298.6388 37424482.4219
# 2019 181431469.956 38979504.8646 39744800.332
# 2020 177802840.557 43968881.4873 42208977.9526