Percent of Total
| Horsepower |
2001 |
2000 |
1999 |
1998 |
1997 |
| 0.0 to 3.9 |
3.8% |
3.0% |
3.9% |
3.6% |
4.1% |
| 4.0 to 9.9 |
14.8% |
13.5% |
14.4% |
15.5% |
15.6% |
| 10.0 to 29.9 |
14.9% |
15.2% |
15.2% |
15.8% |
15.7% |
| 30.0 to 49.9 |
9.7% |
9.9% |
10.6% |
11.1% |
12.7% |
| 50.0 to 74.9 |
13.4% |
14.1% |
13.5% |
12.4% |
11.2% |
| 75.0 to 99.9 |
11.4% |
11.9% |
10.7% |
10.8% |
10.5% |
| 100.0 to 149.9 |
11.5% |
11.5% |
12.2% |
12.2% |
11.4% |
| 150.0 to 199.9 |
8.8% |
9.4% |
8.7% |
9.1% |
9.8% |
| 200 & Over |
11.7% |
11.5% |
10.9% |
9.4% |
9.1% |
| Total |
100.0% |
100.0% |
100.1% |
99.9% |
100.1% |
Number of Engines
| Horsepower |
2001 |
2000 |
1999 |
1998 |
1997 |
| 0.0 to 3.9 |
11,362 |
10,461 |
12,944 |
11,304 |
12,382 |
| 4.0 to 9.9 |
44,252 |
47,075 |
47,794 |
48,670 |
47,112 |
| 10.0 to 29.9 |
44,551 |
53,002 |
50,449 |
49,612 |
47,414 |
| 30.0 to 49.9 |
29,003 |
34,521 |
35,181 |
34,854 |
38,354 |
| 50.0 to 74.9 |
40,066 |
49,167 |
44,807 |
38,936 |
33,824 |
| 75.0 to 99.9 |
34,086 |
41,495 |
35,513 |
33,912 |
31,710 |
| 100.0 to 149.9 |
34,385 |
40,101 |
40,492 |
38,308 |
34,428 |
| 150.0 to 199.9 |
26,312 |
32,778 |
28,875 |
28,574 |
29,596 |
| 200 & Over |
34,983 |
40,101 |
36,177 |
29,516 |
27,482 |
| Total |
299,000 |
348,700 |
331,900 |
314,000 |
302,000 |
| |
1997 |
1998 |
1999 |
2000 |
2001 |
| Under 30 |
106,908 |
109,586 |
111,187 |
110,538 |
100,165 |
| 30.0 to 74.9 |
72,178 |
73,790 |
79,988 |
83,688 |
69,069 |
| 75.0 to 149.9 |
66,138 |
72,220 |
76,005 |
81,596 |
68,471 |
| 150 plus |
57,078 |
58,090 |
65,052 |
72,878 |
61,295 |
|
