Show data table
| 1955 | 143M | 1976 | 593M | 1997 | 1.54B |
| 1956 | 173M | 1977 | 749M | 1998 | 1.45B |
| 1957 | 229M | 1978 | 828M | 1999 | 1.41B |
| 1958 | 252M | 1979 | 926M | 2000 | 1.79B |
| 1959 | 226M | 1980 | 1B | 2001 | 1.91B |
| 1960 | 234M | 1981 | 1.01B | 2002 | 1.07B |
| 1961 | 115M | 1982 | 1.52B | 2003 | 988M |
| 1962 | 204M | 1983 | 2.01B | 2004 | 1.45B |
| 1963 | 245M | 1984 | 1.33B | 2005 | 2.67B |
| 1964 | 200M | 1985 | 820M | 2006 | 3.63B |
| 1965 | 227M | 1986 | 1B | 2007 | 4.35B |
| 1966 | 239M | 1987 | 766M | 2008 | 5.66B |
| 1967 | 270M | 1988 | 1.1B | 2009 | 4.06B |
| 1968 | 273M | 1989 | 1.2B | 2010 | 3.99B |
| 1969 | 264M | 1990 | 738M | 2011 | 3.58B |
| 1970 | 273M | 1991 | 984M | 2012 | 5.11B |
| 1971 | 352M | 1992 | 993M | 2013 | 6.2B |
| 1972 | 405M | 1993 | 1.29B | 2014 | 1.55B |
| 1973 | 421M | 1994 | 940M | 2015 | 321M |
| 1974 | 602M | 1995 | 1.2B | 2016 | 218M |
| 1975 | 712M | 1996 | 733M | 2017 | 2.13B |
Show data table
| 1955 | 2.6% | 1976 | 1.9% | 1997 | 1.8% |
| 1956 | 2.8% | 1977 | 2.1% | 1998 | 1.6% |
| 1957 | 3.2% | 1978 | 2.1% | 1999 | 1.4% |
| 1958 | 3.4% | 1979 | 1.9% | 2000 | 1.5% |
| 1959 | 3% | 1980 | 1.7% | 2001 | 1.6% |
| 1960 | 3.1% | 1981 | 1.5% | 2002 | 1.2% |
| 1961 | 1.4% | 1982 | 2.2% | 2003 | 1.2% |
| 1962 | 2.3% | 1983 | 3% | 2004 | 1.3% |
| 1963 | 2.6% | 1984 | 2.3% | 2005 | 1.8% |
| 1964 | 2.4% | 1985 | 1.4% | 2006 | 2% |
| 1965 | 2.6% | 1986 | 1.6% | 2007 | 1.9% |
| 1966 | 2.7% | 1987 | 1.6% | 2008 | 1.8% |
| 1967 | 2.9% | 1988 | 1.8% | 2009 | 1.2% |
| 1968 | 2.7% | 1989 | 2.8% | 2010 | 1% |
| 1969 | 2.5% | 1990 | 1.5% | 2011 | 1.1% |
| 1970 | 2.3% | 1991 | 1.8% | 2012 | 1.3% |
| 1971 | 2.7% | 1992 | 1.6% | 2013 | 1.7% |
| 1972 | 2.8% | 1993 | 2.1% | 2014 | 1.2% |
| 1973 | 2.5% | 1994 | 1.6% | 2015 | 0.9% |
| 1974 | 2.3% | 1995 | 1.5% | 2016 | 0.5% |
| 1975 | 2.6% | 1996 | 1% | 2017 | 2.2% |