the following table details the growth in global weighted average berths and the global , north american , european and asia/pacific cruise guests over the past five years ( in thousands , except berth data ) : weighted- average supply of berths marketed globally ( 1 ) caribbean cruises ltd . total berths ( 2 ) global cruise guests ( 1 ) american cruise guests ( 1 ) ( 3 ) european cruise guests ( 1 ) ( 4 ) asia/pacific cruise guests ( 1 ) ( 5 ) .

weighted-averagesupply ofberthsmarketedglobally ( 1 ): 2012: 425000
2013: 432000
2014: 448000
2015: 469000
2016: 493000
royal caribbean cruises ltd . total berths ( 2 ): 2012: 98650
2013: 98750
2014: 105750
2015: 112700
2016: 123270
globalcruiseguests ( 1 ): 2012: 20813
2013: 21343
2014: 22039
2015: 23000
2016: 24000
north american cruise guests ( 1 ) ( 3 ): 2012: 11641
2013: 11710
2014: 12269
2015: 12004
2016: 12581
european cruise guests ( 1 ) ( 4 ): 2012: 6225
2013: 6430
2014: 6387
2015: 6587
2016: 6542
asia/pacific cruise guests ( 1 ) ( 5 ): 2012: 1474
2013: 2045
2014: 2382
2015: 3129
2016: 3636

_______________________________________________________________________________ ( 1 ) source : our estimates of the number of global cruise guests and the weighted-average supply of berths marketed globally are based on a combination of data that we obtain from various publicly available cruise industry trade information sources . we use data obtained from seatrade insider , cruise industry news and company press releases to estimate weighted-average supply of berths and clia and g.p . wild to estimate cruise guest information . in addition , our estimates incorporate our own statistical analysis utilizing the same publicly available cruise industry data as a base . ( 2 ) total berths include our berths related to our global brands and partner brands . ( 3 ) our estimates include the united states and canada . ( 4 ) our estimates include european countries relevant to the industry ( e.g. , nordics , germany , france , italy , spain and the united kingdom ) . ( 5 ) our estimates include the southeast asia ( e.g. , singapore , thailand and the philippines ) , east asia ( e.g. , china and japan ) , south asia ( e.g. , india and pakistan ) and oceanian ( e.g. , australia and fiji islands ) regions . north america the majority of industry cruise guests are sourced from north america , which represented approximately 52% ( 52 % ) of global cruise guests in 2016 . the compound annual growth rate in cruise guests sourced from this market was approximately 2% ( 2 % ) from 2012 to 2016 . europe industry cruise guests sourced from europe represented approximately 27% ( 27 % ) of global cruise guests in 2016 . the compound annual growth rate in cruise guests sourced from this market was approximately 1% ( 1 % ) from 2012 to 2016 . asia/pacific industry cruise guests sourced from the asia/pacific region represented approximately 15% ( 15 % ) of global cruise guests in 2016 . the compound annual growth rate in cruise guests sourced from this market was approximately 25% ( 25 % ) from 2012 to 2016 . the asia/pacific region is experiencing the highest growth rate of the major regions , although it will continue to represent a relatively small sector compared to north america . competition we compete with a number of cruise lines . our principal competitors are carnival corporation & plc , which owns , among others , aida cruises , carnival cruise line , costa cruises , cunard line , holland america line , p&o cruises , princess cruises and seabourn ; disney cruise line ; msc cruises ; and norwegian cruise line holdings ltd , which owns norwegian cruise line , oceania cruises and regent seven seas cruises . cruise lines compete with .

Questions:
what is the net change in weighted-average supply of berths market ed globally from 2012 to 2016?
what percentage change does this represent?

Answers:
68000
16%