Year	Number
1997	573108294.340894
1998	605825498.0834414
1999	642904827.7550979
2000	679677027.6331899
2001	667042368.9678311
2002	662519504.1433799
2003	657584572.5291396
2004	680025751.0182701
2005	700513025.6465719
2006	783842500.6817243
2007	782447672.3347722
2008	788079466.2633773
2009	746445148.5375476
2010	750725208.8849736
2011	756246597.7462723
2012	767313596.5130429
2013	786624578.5782343
2014	780358507.9201149
2015	813932356.2839646
2016	849355803.6395037
2017	897596488.4521574
2018	922286548.2395293
2019	936358201.3087355