  We used high-precision radial velocity measurements of FGKM stars to
determine the occurrence of giant planets as a function of orbital separation
spanning 0.03-30 au. Giant planets are more prevalent at orbital distances of
1-10 au compared to orbits interior or exterior of this range. The increase in
planet occurrence at $\sim$1 au by a factor of $\sim$4 is highly statistically
significant. A fall-off in giant planet occurrence at larger orbital distances
is favored over models with flat or increasing occurrence. We measure
$14.1^{+2.0}_{-1.8}$ giant planets per 100 stars with semi-major axes of 2-8 au
and $8.9^{+3.0}_{-2.4}$ giant planets per 100 stars in the range 8-32 au, a
decrease in giant planet occurrence with increasing orbital separation that is
significant at the $\sim$2$\sigma$ level. We find that the occurrence rate of
sub-Jovian planets (0.1-1 Jupiter masses) is also enhanced for 1-10 au orbits.
This suggests that lower mass planets may share the formation or migration
mechanisms that drive the increased prevalence near the water-ice line for
their Jovian counterparts. Our measurements of cold gas giant occurrence are
consistent with the latest results from direct imaging surveys and
gravitational lensing surveys despite different stellar samples. We corroborate
previous findings that giant planet occurrence increases with stellar mass and
metallicity.
