|

| Year |
Quarter |
| 1st |
2nd |
3rd |
4th |
| 1980 |
348979 |
388646 |
402398 |
380833 |
| 1981 |
353612 |
398315 |
415902 |
382441 |
| 1982 |
345451 |
412239 |
441811 |
392980 |
| 1983 |
364078 |
423098 |
454410 |
407520 |
| 1984 |
377319 |
445776 |
472696 |
420977 |
| 1985 |
387913 |
463064 |
486742 |
437043 |
| 1986 |
407707 |
473106 |
500553 |
456875 |
| 1987 |
433487 |
495403 |
517345 |
478092 |
| 1988 |
458463 |
523536 |
540354 |
503233 |
| 1989 |
481472 |
543237 |
562483 |
519848 |
| 1990 |
495930 |
557809 |
570942 |
522820 |
| 1991 |
490316 |
564934 |
586044 |
530920 |
| 1992 |
511634 |
580026 |
602277 |
553215 |
| 1993 |
522393 |
594132 |
613237 |
566943 |
| 1994 |
531948 |
609281 |
630334 |
586025 |
| 1995 |
566118 |
622169 |
640270 |
594217 |
| 1996 |
564199 |
639480 |
661763 |
616759 |
| 1997 |
586028 |
659626 |
683756 |
630963 |
| 1998 |
598259 |
674553 |
696548 |
656004 |
| 1999 |
605829 |
687752 |
708925 |
676952 |
| 2000 |
635578 |
713377 |
720180 |
677789 |
| 2001 |
643702 |
721380 |
729202 |
701325 |
| 2002 |
660029 |
737173 |
747803 |
710503 |
| 2003 |
659582 |
745391 |
758785 |
726691 |
| 2004 |
688100 |
764972 |
771131 |
738289 |
| 2005 |
697501 |
778305 |
777131 |
739803 |
| 2006 |
709338 |
778236 |
776146 |
750361 |
| 2007 |
704938 |
779196 |
779227 |
738933 |
| 2008 |
688707 |
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