| Year | ERA | WHIP | BABIP | H/9 | HR/9 | K/9 | GB% | K% | BB% | K%-BB% |
|---|---|---|---|---|---|---|---|---|---|---|
| 1973 | 3.50 | 1.155 | .308 | 7.78 | 1.13 | 10.51 | 54.76% | 28.43% | 7.08% | 21.35% |
| 1972 | 3.91 | 1.221 | .311 | 8.20 | 1.27 | 10.05 | 54.72% | 26.76% | 7.43% | 19.33% |
| 1971 | 3.63 | 1.218 | .312 | 8.21 | 1.10 | 9.60 | 54.88% | 25.67% | 7.35% | 18.32% |
| 1970 | 3.60 | 1.245 | .300 | 8.43 | .88 | 7.85 | 53.86% | 20.94% | 7.40% | 13.54% |
| 1969 | 3.66 | 1.255 | .299 | 8.55 | .89 | 7.49 | 53.21% | 19.93% | 7.30% | 12.64% |
| 1968 | 3.70 | 1.273 | .301 | 8.70 | .88 | 7.32 | 53.20% | 19.38% | 7.29% | 12.08% |
| 1967 | 3.76 | 1.277 | .299 | 8.71 | .92 | 7.21 | 53.30% | 19.09% | 7.37% | 11.72% |
| 1966 | 3.94 | 1.312 | .303 | 8.94 | .93 | 7.02 | 53.35% | 18.42% | 7.53% | 10.89% |
| 1965 | 4.13 | 1.358 | .315 | 9.46 | 1.00 | 7.07 | 53.17% | 18.31% | 7.14% | 11.17% |
| 1964 | 4.22 | 1.366 | .314 | 9.50 | 1.04 | 7.00 | 52.73% | 18.11% | 7.23% | 10.88% |
| 1963 | 4.45 | 1.386 | .313 | 9.68 | 1.10 | 6.66 | 53.66% | 17.15% | 7.19% | 9.96% |
| 1962 | 4.43 | 1.397 | .315 | 9.75 | 1.04 | 6.45 | 53.85% | 16.59% | 7.25% | 9.34% |
| 1961 | 4.40 | 1.398 | .313 | 9.71 | 1.08 | 6.47 | 53.72% | 16.65% | 7.39% | 9.27% |
| 1960 | 4.27 | 1.420 | .318 | 9.86 | 1.05 | 6.38 | 54.54% | 16.42% | 7.52% | 8.90% |
| 1959 | 4.34 | 1.433 | .318 | 9.91 | 1.07 | 6.31 | 54.68% | 16.17% | 7.64% | 8.53% |
| 1958 | 4.29 | 1.425 | .316 | 9.86 | 1.03 | 6.17 | 54.94% | 15.82% | 7.60% | 8.22% |
| 1957 | 4.21 | 1.406 | .313 | 9.72 | 1.02 | 6.25 | 54.79% | 16.11% | 7.57% | 8.54% |
| 1956 | 4.52 | 1.409 | .311 | 9.71 | 1.07 | 6.22 | 59.99% | 16.00% | 7.65% | 8.35% |
| 1955 | 4.48 | 1.404 | .309 | 9.63 | 1.11 | 6.34 | 59.82% | 16.33% | 7.73% | 8.60% |
| 1954 | 4.63 | 1.427 | .308 | 9.69 | 1.13 | 6.15 | 59.87% | 15.74% | 8.08% | 7.66% |
| 1953 | 4.46 | 1.403 | .305 | 9.53 | 1.10 | 6.20 | 59.67% | 15.95% | 7.96% | 7.99% |
| 1952 | 4.36 | 1.384 | .300 | 9.35 | 1.09 | 6.06 | 60.09% | 15.66% | 8.04% | 7.62% |
| 1951 | 4.28 | 1.380 | .294 | 9.18 | .99 | 6.06 | 59.24% | 15.57% | 8.33% | 7.24% |
| 1950 | 4.25 | 1.374 | .290 | 9.09 | .95 | 5.79 | 59.15% | 14.88% | 8.41% | 6.48% |
| 1949 | 4.38 | 1.425 | .302 | 9.48 | .87 | 5.76 | 58.45% | 14.65% | 8.50% | 6.15% |
| 1948 | 4.48 | 1.436 | .302 | 9.54 | .90 | 5.66 | 58.08% | 14.38% | 8.60% | 5.77% |
| 1947 | 4.43 | 1.440 | .303 | 9.51 | .85 | 5.75 | 58.42% | 14.60% | 8.76% | 5.84% |
| 1946 | 4.47 | 1.434 | .302 | 9.53 | .91 | 5.80 | 58.72% | 14.72% | 8.58% | 6.14% |
| 1945 | 4.27 | 1.404 | .298 | 9.30 | .88 | 5.82 | 58.06% | 14.87% | 8.53% | 6.35% |
| 1944 | 4.33 | 1.424 | .297 | 9.31 | .87 | 5.71 | 58.04% | 14.54% | 8.93% | 5.61% |
| 1943 | 4.30 | 1.427 | .300 | 9.34 | .79 | 5.68 | 58.46% | 14.48% | 8.92% | 5.55% |
| 1942 | 4.43 | 1.440 | .299 | 9.33 | .88 | 5.80 | 58.29% | 14.73% | 9.22% | 5.51% |
| 1941 | 4.42 | 1.436 | .298 | 9.32 | .92 | 5.84 | 58.42% | 14.84% | 9.15% | 5.68% |
| 1940 | 4.42 | 1.427 | .296 | 9.27 | .93 | 5.90 | 57.49% | 15.01% | 9.07% | 5.94% |
| 1939 | 4.50 | 1.441 | .296 | 9.28 | .99 | 5.87 | 57.35% | 14.91% | 9.37% | 5.54% |
| 1938 | 4.57 | 1.446 | .299 | 9.35 | 1.02 | 6.15 | 57.05% | 15.56% | 9.27% | 6.29% |
| 1937 | 4.38 | 1.405 | .296 | 9.16 | .99 | 6.29 | 57.03% | 16.05% | 8.87% | 7.18% |
| 1936 | 4.45 | 1.423 | .300 | 9.27 | 1.02 | 6.45 | 56.75% | 16.40% | 8.99% | 7.41% |
| 1935 | 4.29 | 1.387 | .296 | 9.09 | .98 | 6.48 | 56.47% | 16.59% | 8.69% | 7.91% |