Figure 1 All Ton-Miles,,,
Ton-miles (billions),,,
Year,Improved BTS,NTS,Eno
1990,"3,584","3,196","2,774"
1991,"3,597","3,233","2,792"
1992,"3,706","3,337","2,906"
1993,"3,728","3,364","2,989"
1994,"3,904","3,527","3,142"
1995,"4,061","3,648","3,276"
1996,"4,132","3,725","3,386"
1997,"4,136","3,682","3,404"
1998,"4,186","3,710","3,459"
1999,"4,259","3,781","3,552"
2000,"4,265","3,778","3,561"
2001,"4,293","3,757","3,548"
2002,"4,366",,
2003P,"4,357",,
Key: p = preliminary.,,,